GOST 19281-2014

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  ГОСТ 19281-2014

GOST 19281−2014 rolled high tensile strength. General specifications

GOST 19281−2014

Group B22
Q23
В32
B33

INTERSTATE STANDARD

ROLLED HIGH TENSILE STRENGTH

General specifications

High strength rolled steel. General specification

ISS 77.140.50
77.140.60

Date of introduction 2015−01−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−2015 «interstate standardization system. Basic provisions» and GOST 1.2−2015 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, renewal and cancellation"

Data on standard

1 DEVELOPED by the Federal state unitary enterprise «Central research Institute of ferrous metallurgy them.And.P.Bardina» (FSUE «tsniichermet im.And.P.Bardeen»)

2 as AMENDED by the Federal Agency for technical regulation and Metrology (Rosstandart)

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes dated March 28, 2014 N 65-P)

The adoption voted:

Short name of the country on MK (ISO 3166) 004−97	Country code MK (ISO 3166) 004−97	Abbreviated name of the national authority for standardization
Armenia	AM	Ministry Of Economy Of The Republic Of Armenia
Belarus	BY	Gosstandart Of The Republic Of Belarus
Kazakhstan	KZ	Gosstandart Of The Republic Of Kazakhstan
Kyrgyzstan	KG	Kyrgyzstandard
Russia	EN	Rosstandart
Tajikistan	TJ	Tajikstandart
Uzbekistan	UZ	Uzstandard
Ukraine	UA	The Ministry Of Economic Development Of Ukraine

4 by Order of the Federal Agency for technical regulation and Metrology dated 24 October 2014 N 1430-St inter-state standard GOST 19281−2014 introduced as a national standard of the Russian Federation from 1 January 2015.

5 REPLACE GOST 19281−89

6 REISSUE. October 2016


Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

1 Scope

This standard applies to hot-rolled mill plate, universal broadband, graded, shaped and formed sections of high strength (hereinafter — products), used in the construction of General purpose with welded, riveted and bolted connections.

In terms of requirements to chemical composition this standard covers ingots, blooms, slabs, rolled, forged and nepreryvnolityh billet, pre-painted steel sheet, forgings, and production of steel grades 07ГФБ, 07ГФБ-1, 08ХМФчЮА, 09ГСФЮ, 09Г2ФБ, 09Г2ФБ-1, 10G2FBYU, 10G2FBYU-1,12 GSBU, 12ГСБЮ-1, 13ХФЮ, 17G1S-U, 17G1S-U-1 and 20ФЮ.

2 Normative references

This standard uses the regulatory references to the following international standards:

GOST 82−70 hot-rolled steel universal broadband. Assortment

GOST 103−2006 bars, steel, hot-rolled strip. Assortment

GOST 535−2005 the bar and shaped sections of quality carbon steel. General specifications

GOST 1497−84 (ISO 6892−84) Metals. Test methods tensile

GOST 2590−2006 bars, steel, hot rolled round. Assortment

GOST 2591−2006 bars, steel, hot-rolled square. Assortment

GOST 2879−2006 bars, steel hot rolled hexagon. Assortment

GOST 5267.1−90 Channels. Assortment

GOST 5267.2-Profile z 90. Assortment

GOST 5267.3−90 Profile z for sill. Assortment

GOST 5267.4−90 Profile for the upper trim. Assortment

GOST 5267.5−90 I-beam section No. 19 for centre girder. Assortment

GOST 5267.6−90 section of car post. Assortment

GOST 5267.7−90 section of upper sheet of the cross beam frame gondola. Assortment

GOST 5639−82 of Steel and alloys. Methods of detection and determination of grain size

GOST 7268−82 Steel. The method of determining the propensity to mechanical aging test the impact strength

GOST 7511−73 steel sections for window and lantern transoms and window panels of industrial buildings. Specifications

GOST 7564−97 hire. General rules of sample, blanks collection for mechanical and technological tests

GOST 7565−81 (ISO 377−2-89) Iron, steel and alloys. Sampling method for determination of chemical composition

GOST 7566−94 metal Products. Acceptance, marking, packing, transportation and storage

GOST 8239−89 hot-rolled steel I-Beams. Assortment

GOST 8240−97 Channels hot-rolled steel. Assortment

GOST 8278−83 steel roll-formed Channels. Assortment

GOST 8281−80 steel Channels roll-formed angle. Assortment

GOST 8282−83 steel sections S-shaped angle. Assortment

GOST 8283−93 steel sections trough angle. Assortment

The Angles GOST 8509−93 hot-rolled steel angle. Assortment

GOST 8510−86 angle steel hot rolled angle. Assortment

GOST 9234−74 steel bend sections with trapezoidal sheet corrugated. Assortment

GOST 9454−78 Metals. Test method for impact strength at low, room and elevated temperatures

GOST 10551−75 steel sections corrugated. Assortment

GOST 11474−76 steel sections. Specifications

GOST 12344−2003 Steel alloyed and high alloy. Methods for determination of carbon

GOST 12345−2001 (ISO 671−82, ISO 4935−89) Steel alloyed and high alloy. Methods of determining sulphur

GOST 12346−78 (ISO 439−82, ISO 4829−1-86) Steel alloyed and high alloy. Methods for determination of silicon

GOST 12347−77 Steel alloyed and high alloy. Methods for determination of phosphorus

GOST 12348−78 (ISO 629−82) Steel alloyed and high alloy. Methods for determination of manganese

GOST 12350−78 Steel alloyed and high alloy. Methods for determination of chromium

GOST 12351−2003 (ISO 4942:1988, ISO 9647:1989) Steel alloyed and high alloy. Methods for determination of vanadium

GOST 12352−81 Steel alloyed and high alloy. Methods for determination of Nickel

GOST 12355−78 Steel alloyed and high alloy. Methods for determination of copper

GOST 12356−81 Steel alloyed and high alloy. Methods for determination of titanium

GOST 12357−84 Steel alloyed and high alloy. Methods for determination of aluminium

GOST 12358−2002 Steel alloyed and high alloy. Methods for determination of arsenic

GOST 12359−99 (ISO 4945−77) Steels carbon, alloyed and high alloy. Methods for determination of nitrogen

GOST 12361−2002 Steel alloyed and high alloy. Methods for determination of niobium

GOST 12364−84 Steel alloyed and high alloy. Methods for the determination of cerium

GOST 13229−78 Profiles steel bent Zeta. Assortment

GOST 14019−2003 (ISO 7438:1985) Materials of metal. Method of bend test

GOST 14635−93 the steel cold-shaped special Profiles for car building. Assortment

GOST 14637−89 (ISO 4995−78) rolled plate from carbon steel of ordinary quality. Specifications

GOST 15150−69 Machines, instruments and other technical products. Versions for different climatic areas. Categories, conditions of use, storage and transportation of the impact of climatic factors of the external environment

GOST 17745−90 of Steel and alloys. Methods for the determination of gases

GOST 18895−97 Steel. Method of photoelectric spectral analysis

GOST 19425−74 steel I-Beam and steel channels special. Assortment

GOST 19771−93 Corners steel bent angle. Assortment

GOST 19772−93 Corners steel bent angle. Assortment

GOST 19903−74 hot-rolled steel sheets. Assortment

GOST 21014−88 ferrous metals. Terms and definitions of defects

GOST 21026−75 hot-rolled steel Channels with curved shelf for trolleys. Assortment

GOST 21120−75 Bars and billets round and rectangular section. Methods of ultrasonic flaw detection

GOST 22536.0−87 carbon Steel and unalloyed cast iron. General requirements for methods of analysis

GOST 22536.1−88 carbon Steel and unalloyed cast iron. Methods for determination of total carbon and graphite

GOST 22536.2−87 carbon Steel and unalloyed cast iron. Methods of determining sulphur

GOST 22536.3−88 carbon Steel and unalloyed cast iron. Methods for determination of phosphorus

GOST 22536.4−88 carbon Steel and unalloyed cast iron. Methods for determination of silicon

GOST 22536.5−87 (ISO 629−82) carbon Steel and unalloyed cast iron. Methods for determination of manganese

GOST 22536.6−88 carbon Steel and unalloyed cast iron. Methods for determination of arsenic

GOST 22536.7−88 carbon Steel and unalloyed cast iron. Methods for determination of chromium

GOST 22536.8−87 carbon Steel and unalloyed cast iron. Methods for determination of copper

GOST 22536.9−88 carbon Steel and unalloyed cast iron. Methods for determination of Nickel

GOST 22536.10−88 carbon Steel and unalloyed cast iron. Methods for determination of aluminium

GOST 22536.11−87 carbon Steel and unalloyed cast iron. Methods for determination of titanium

GOST 22536.12−88 carbon Steel and unalloyed cast iron. Methods for determination of vanadium

GOST 22727−88 the rolled sheet. Methods of ultrasonic testing

GOST 25577−83 Profiles steel bent closed welded square and rectangular. Specifications

GOST 26020−83 I-Beams steel hot rolled with parallel flanges. Assortment

GOST 26877−2008 metal Products. Methods of measuring form deviations of

GOST 27809−95 Cast iron and steel. Methods for spectrographic analysis

GOST 28033−89 Steel. Method x-ray fluorescence analysis

GOST 28473−90 Iron, steel, ferroalloys, chromium and manganese metal. General requirements for methods of analysis

GOST 30415−96 Steel. Non-destructive testing of mechanical properties and microstructure of steel products by magnetic method.

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Terms and definitions

This standard applies the following terms with the appropriate definitions in addition to terms and definitions specified in the referenced standards.

3.1 black bars: the Products in which the tangent at any point on the contour of the cross section this cross-section intersects. The cross-section remains the same throughout the length of rental:

— round — cross-section in the shape of a circle;

— square — cross-section in the shape of a square;

— hexagonal — cross-section in the shape of a hexagon;

— strip with a rectangular cross section laminated on all four sides.

3.2 hot-rolled: Flat-rolled products with a thickness of 3.0 mm and more with the free deformation of the edges of the generally rectangular cross-section with the edge of the as supplied or trimmed with shears or flame (plasma) cutting.

Notes

1 Production of a thick sheet can be performed:

— directly on reversing mill or slitting a wider sheet, is laminated on the reversing mill «quarto sheet»;

— cutting of hot-rolled steel (strip), rolled on a continuous mill.

2 the Strip — rolled, in irregularly wound coil immediately after the final pass in the finishing train or (and) after etching and (or) annealing. The strip in the rolled condition has a slightly wavy edge, but can be made with a cut edge on the scissors or after slitting a wider strip.

3 hot-Rolled strip, including the strip after slitting of wider strip (the width of the rental), klassificeret on the actual width:

hot — rolled wide strip: a strip with a width equal to or greater than 600 mm,

hot — rolled narrow strips: strip width of less than 600 mm.

3.3 rental universal broadband: Flat products without trimming the longitudinal edges, rolled from four sides or in a rectangular caliber and delivered in sheets.

3.4 rolled shapes: the Products in which a tangent at least one point of the contour of the cross section this section traverses (angle, channel, I-beam, profiles special purpose).

3.5 the bent profiles: the Profiles of various cross-sections, manufactured on roll forming mills of cold-rolled or hot-rolled steel, having a cross-section of the same along the entire length.

3.6 allowed to use the following terms for rental:

3.6.1 the plate in sheets and universal broadband: the Leaves.

3.6.2 plate in coils (rolls): Roll.

3.6.3 varietal (except the strip): Bars and rods, coils.

3.6.4 varietal strip: Strip.

3.6.5 structural shapes and formed sections: Profiles.

3.7 thermal hardening: the Technological process of heat treatment, including quenching of individual heating with subsequent vacation.

3.8 thermomechanical processing: Deformation processing, providing for the ultimate change in the shape in a certain temperature range, thereby providing the necessary condition of steel products, as well as its properties, which are only due to the heat treatment cannot be obtained or reproduced.

3.9 normalizing rolling: the process of rolling, in which deformation at the final stage occurs in a predetermined temperature range, which allows to obtain products in a state similar to normalized, with the result that she has the same mechanical properties after normalization.

3.10 controlled rolling: the process of steelmaking-rolling of the workpiece, including the regulation of temperature and time parameters of billet heating, temperature-deformation parameters of deformation during rolling. In this case the deformation is carried out in several stages. The end of deformation in two-phase (a) region and in the lower part (one-phase) region. Perhaps the use of accelerated cooling or high holiday.

3.11 accelerated cooling: the Technological process of forced cooling of the product at speeds exceeding the speed of cooling air in a quiet atmosphere.

3.12 surface area of rolled edge Narrow line rental «as laminated» in width, not displaying wide-face plate and universal broadband rental for a nominal amount.

3.13 residual chemical element: a Chemical element, not intentionally added, and caught in the melting of charge materials, refractories or air.

3.14 cold-resistant version (CL): climate design for operation in regions with cold climate in accordance with GOST 15150. The grade of steel in the designation have the letter D.

3.15 steel non-alloy quality: In accordance with [1]*.
___________________
* In the Russian Federation can be used by GOST R 54384−2011 (EN 10020:2000) «Steel. Definition and classification of chemical composition and grade of quality."

3.16 steel alloy: In accordance with [1]*.
___________________
* In the Russian Federation can be used by GOST R 54384−2011 (EN 10020:2000) «Steel. Definition and classification of chemical composition and grade of quality."

3.17 composition chemical composition: the embodiment of the chemical composition for steel grades, for which table 7 is not limited to the lower limit on the mass fraction of manganese and (or) silicon. The steel grade designation is supplemented by a dash number 1.

3.18 microalloying: Introduction to steel (often shared with deoxidation and degassing of steel) individual elements or their compounds in the residual mass fraction of each element does not exceed that indicated in [1]*.
___________________
* In the Russian Federation can be used by GOST R 54384−2011 (EN 10020:2000) «Steel. Definition and classification of chemical composition and grade of quality."

3.19 modification: Introduction of additives into the melt for grain refinement, having dendrite structure, giving dispersed spherical form excess phases, improve the mechanical properties. The modification differs from that of the microalloying fact that its introduction is limited because of low solubility or volatility, or ineffective or harmful, while an increase in the microalloying additives leads to conventional alloying.

4 Classification and assortment

4.1 the hire is made:

— types:

— plate;

— universal broadband;

— graded;

— shaped;

— curved profile;

— classes of quality are:

— non-alloy quality;

— alloy;

— classes of strength:

— 265; 295; 315; 325; 345; 355; 375; 390; 440; 460; 500; 550; 600; 620; 650; 700 with the designation according to this standard;

— S235; S275; S355 — with marking according to standard [2], where the letter S means «structural steel», figure — minimum value of yield strength for rolled diameter up to 16 mm, inclusive;

— requirements to chemical composition of steel:

— with chemical composition bounded from above, to avoid exceeding the strength characteristics of the rental stipulated in the strength class;

— with chemical composition specified for the steel grade (composition), ensure complex properties, strength class;

— by categories of deliveries depending on the normalized characteristics of mechanical properties at test for impact strength is from 1 to 15.

4.2 In form, dimensions and limit deviations, form and product size should meet the requirements:

— bars:

— round bars and coils — GOST 2590;

— square bars and coils — GOST 2591;

— hex-shaped bars and coils — GOST 2879;

— strip — GOST 103;

— plates — GOST 19903;

rental universal broadband — 82 GOST;

— rolled shapes:

— angle — GOST 8509;

— angle — GOST 8510;

— u, GOST 8240, GOST 19425, GOST 21026;

— I-beam — GOST 8239, GOST 19425;

— I-beams with parallel flange edges, GOST 26020;

— special profiles — GOST 5267.1 — GOST 5267.7;

profiles bent — 7511 GOST, GOST 8278, 8281 GOST, GOST 8282, 8283 GOST, GOST 9234, 10551 GOST, GOST 13229, 14635 GOST, GOST 19771, 19772 GOST, GOST 25577.

Note — By agreement between manufacturer and customer is allowed manufacture of products with the requirements of the range by other standards, or other requirements that further specify when ordering.

5 Technical requirements

5.1 Characteristics of the underlying execution

5.1.1 Chemical composition of steel by ladle analysis samples for product strength classes 265, 295, 315, 325, 345, 355, 375, 390 and 440 must conform to the standards specified in table 1.


Table 1 — Chemical composition of steel by ladle sample analysis

Strength class	Mass fraction of elements, %, not more
	With	Si	MP	R	S	SG	Ni	Si	V	N
265, 295	0,14	0,60	1,60	0,030	0,035	0,30	0,30	0,30	0,15	0,012
315	0,18	0,60	1,80	0,030	0,035	0,30	0,30	0,30	0,15	0,012
325	0,20	0,90	1,80	0,030	0,035	0,60	0,30	0,30	0,10	0,012
345	0,22	0,90	1,90	0,030	0,035	0,60	0,30	0,30	0,10	0,030
355
375						0,90
390	0,22	1,10	1,90	0,030	0,035	0,90	0,30	0,30	0,10	0,030
440									0,15
Note — permitted are: AI is not more than 0.05%, Ti not more than 0.04% Nb and not more than 0.05%.

5.1.1.1 Mass fraction As in steel for all strength classes shall not exceed 0,08%.

5.1.1.2 To ensure the required level of properties is allowed to apply modification become CA and/or rare earth elements: RG, CE, La, Nd, Sm, Gd or other the rate of introduction of metal not more than 0.02% CA and 0.05% of rare earth elements. In the document on quality indicates the calculated value of items entered.

5.1.2 In the production of a deviation in the mass fraction of the elements of the standards are shown in table 1, in accordance with table 8, except for the deviations on the mass fraction of N. the Deviation of the mass fraction of N is allowed only for the production of class of strength 265, 295, 315, 325.

5.1.3 List of recommended steel grades and conditions of supply for different types and strength classes of products are given in Appendix A.

5.1.4 Products manufactured in the state:

without heat treatment;

in thermally treated (THAT) after:

— annealing ();

— the high holiday (VO);

— normalize (N);

thermal strengthening (TU);

in thermo-mechanical treated (TMT) after:

normalizing rolling (NP);

— controlled rolling, including with accelerated cooling (KP) or high tempering (KPO).

Delivery status, if it is not specified in the order, defined by the manufacturer and specifies in the instrument of quality.

Note — it is allowed to put bars and shapes anti-flake treatment, aging at a predetermined temperature and subsequent slow cooling.

5.1.5 the quality of the surface plate and universal broadband rental

5.1.5.1 On the surface of the wide faces (except the surface in the area of the rolled edges) must be no flaws, rips, rolled, and burnt crust, and bubbles-bubbles, accordions, cracks, prisoner, rolled dirt and katanoi scale.

Eliminating unacceptable surface defects is carried out with a sweep. Obtained during cleaning of the recess should have smooth transitions with the ratio of Stripping to her depth of at least 5:1. The cleaning is carried out with an abrasive tool or methods that do not cause a change in the properties of rolled products.

The depth of the Stripping surface defects should take the size of the rental for the ultimate sub-zero deviation in thickness.

Allowed Stripping of surface defects area separately stripped area not more than 100 cmto a depth of 5% of the nominal thickness in excess of the minus tolerances for the thickness, but not more than 3 mm, the total area of all the stripped plots of this depth should not exceed 2% of the leaf area.

When coincidence Stripping on both sides of the rental the total depth of the sweeps should take the size of the rental for the ultimate sub-zero deviation in thickness.

The total area of the cleaned surface shall not exceed 20% of the leaf area.

The stripped surface should not have scratches visible to the naked eye, on the border of the zone of Stripping should be free of ledges.

Permitted without the removal of local (area not exceeding 100 cm) defects (rabiza, risk, fingerprints), a total area of not exceeding 10% of the leaf area and its depth (height) is not outputting the size of the rent for the maximum deviations in thickness.

On the surface of the secondary air is allowed to scale, do not interfere with the detection of surface defects.

5.1.5.2 surface rental in the area of the rolled edges should be free of delaminations, flaws, cracks, captivity, pollution, katanoi scale, wooloowin and scratches, which eliminates the rent for the minimum dimensions in thickness, and bubbles-bubbles that gets the rental for the maximum thickness.

5.1.5.2.1 the depth of the defects on the rolled edges should not exceed half of the maximum deviations in width and not show the width of the rental for a nominal amount.

5.1.5.3 For trimming the side and end edges of the plate and at the ends of the universal broadband should not be delamination, cracking, chipping and flaws, and Burr height of more than 2 mm.

5.1.5.4 Crushing and bending the edges after cutting don’t have to display plates for the maximum deviation from flatness according to GOST 19903.

5.1.5.5 rolled Plates in coils (rolls) must not have:

is curved more than 90° edge;

— twisted and crumpled ends;

all incomplete width, the length exceeding the breadth.

5.1.6 the quality of the surface and ends of shapes and rolled sections shall conform to the requirements of GOST 535, roll-formed profiles — standard 11474.

5.1.7 Welding and sealing of defects on the surface of the faces and edges of the plate, universal broadband, bandpass and shaped rolled section rolled is not allowed.

5.1.8 Mechanical properties in the tensile test must meet to:

— long products (round, square, hexagonal, flat), sections — the standards specified in table 2;

— plate, universal broadband rental and roll-formed sections — the standards specified in table 3.

Table 2 — Mechanical properties in the tensile test of shapes and rolled sections

Strength class	The size of the rental in section, mm					Mechanical properties, not less
	Yield strength, N/mm	Tensile strength, N/mm	Elongation , %
265			To	100,0	incl.	265	430	21
	SV.	100,0	to	250,0	«*
295			To	100,0	incl.	295	430
	SV.	100,0	to	160,0	«*
315			To	140,0	incl.*	315	440
325			To	60,0	incl.	325	450
	SV.	60,0	to	140,0	«*
345			To	20,0	incl.	345	480
	SV.	20,0	to	140,0	«*
355			To	140,0	incl.*	355	480	21
375			To	20,0	incl.	375	510	21
	SV.	20,0	to	50,0	«*
390			To	20,0	incl.	390	530	19
	SV.	20,0	to	50,0	«*
440			To	16,0	incl.*	440	590	19
* For these sizes of rolled test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality.

Table 3 — Mechanical properties in the tensile test plate, universal broadband rental and roll-formed profiles

Strength class	Thickness of product, mm					Mechanical properties, not less
	Yield strength, N/mm	Tensile strength, N/mm	Elongation , %
265			To	160,0	incl.	265	430	21
295			To	100,0	incl.	295	430
315			To	60,0	incl.	315	450
325			To	60,0	incl.	325	450
345			To	32,0	incl.	345	490	21
	SV.	32,0	to	50,0	«*
355			To	20,0	incl.	355	490	20
	SV.	20,0	to	50,0	«*
375			To	50,0	incl.	375	510
390			To	50,0	incl.	390	510	19
440			To	32,0	incl.	440	590
	SV.	32,0	to	50,0	«*
* For the data size of the products test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality.

5.1.9 Products must withstand the bend test at 180° on a mandrel of diameter equal to two thickness of samples without the formation of gaps and cracks.

Allowed bending test production not to, if warranty manufacturer’s satisfactory test results at the consumer.

5.1.10 product test for impact strength in accordance with the categories given in table 4 (unless the order specified by the category).


Table 4

Normalized feature

Category

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

The impact strength KCU at the temperature of test, °C:

minus 20

+

+

minus 30

+

+

minus 40

+

+

minus 50

+

+

minus 60

+

+

minus 70

+

+

The impact strength KCV at the temperature of test, °C:

0

+

minus 20

+

minus 40

+

The impact strength KCU after mechanical ageing at the test temperature +20°C

+

+

+

+

+

+

Note — Shapes in categories 4−6, 13−15 produce thickness up to 11 mm, inclusive.

5.1.10.1 toughness should correspond to:

— high-quality and shaped hire — the standards specified in table 5;

— plate, universal broadband rental and roll-formed sections — the standards specified in table 6.

Table 5 — toughness of shapes and rolled sections

Class so- ness

The size of the rental in section, mm

Impact strength, j/cm, not less at the temperature of test, °C

mi- NUS 20

mi- NUS 30

mi- NUS 40

mi- NUS 50

mi- NUS 60

mi- NUS 70

0

mi- NUS 20

mi- NUS 40

After fur- niches- who stare niya +20

KCU

KCV

KCU

265

To

20.0 incl.

+

+

+

+

+

+

+

+

+

29

SV.

20,0

to

32.0 incl.

29

29

29

+

+

+

+

+

+

SV.

32,0

to

100,0 incl.

29

29

29

+

+

+

+

+

+

SV.

100,0

to

250,0 incl.*

29

29

29

+

+

+

+

+

+

295

Less than 10,0

39

39

39

29

29

29

+

+

+

29

From

10,0

to

20.0 incl.

29

29

29

29

29

29

+

+

+

SV.

20,0

to

32.0 incl.

29

29

29

+

+

+

+

+

+

SV.

32,0

to

60,0 incl.

29

29

29

+

+

+

+

+

+

SV.

60,0

to

100,0 incl.

29

29

29

+

+

+

+

+

+

SV.

100,0

to

160,0 incl.*

29

29

29

+

+

+

+

+

+

315

To

140,0 incl.

+

+

+

+

+

+

+

+

+

29

325

To

10,0 incl.

39

34

34

34

34

34

34

34

+

29

SV.

10,0

to

20.0 incl.

39

29

29

29

29

29

34

34

+

SV.

20,0

to

32.0 incl.

29

29

29

+

+

+

+

+

+

SV.

32,0

to

60,0 incl.

29

29

29

+

+

+

+

+

+

SV.

60,0

to

140,0 incl.*

29

29

29

+

+

+

+

+

+

345

To

10,0 incl.

39

39

39

29

29

29

39

39

+

29

SV.

10,0

to

20.0 incl.

29

29

29

+

+

+

+

+

+

SV.

20,0

to

140,0 incl.*

29

29

29

+

+

+

+

+

+

355

To

140,0 incl.

+

+

+

+

+

+

+

+

+

29

375

To

10,0 incl.

39

39

39

+

+

+

+

+

+

29

SV.

10,0

to

20.0 incl.

29

29

29

+

+

+

+

+

+

SV.

20,0

to

50.0 incl.

+

+

+

+

+

+

+

+

+

390

To

10,0 incl.

39

39

39

34

34

34

+

+

+

29

SV.

10,0

to

16,0 incl.

34

34

34

29

29

29

+

+

+

SV.

16,0

to

20.0 incl.

34

34

34

+

+

+

+

+

+

SV.

20,0

to

50.0 incl.

+

+

+

+

+

+

+

+

+

440

To

16,0 incl.

+

+

+

+

+

+

+

+

+

29

* For these sizes of rolled test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality. Notes 1 the Sign «+" means that the definition of impact strength in accordance with the ordered grade in table 4 carried out for statistical purposes, the results of the tests indicated in the document about quality. 2 For long products round bars the drop test bending is carried out starting from diameter 12 mm and more. 3 For rolled sections with a thickness (diameter) of 12 mm or more, made of slab, the test results of impact strength KCU at test temperature -50°C, -60°C, -70°C are not a symptom of rejection is specified in the document of quality. 4 allowed the reduction in the rate of impact strength on the same sample with the hub U 15% on a single sample concentrator of the form V — 30%, with mean value of test results must be below the limits specified in table 5.

Table 6 — Impact strength of the plate and universal broadband rental and roll-formed profiles

Class so- ness	Thickness of product, mm				Impact strength, j/cm, not less at the temperature of test, °C
	mi- NUS 20	mi- NUS 30	mi- NUS 40	mi- NUS 50	mi- NUS 60	mi- NUS 70	0	mi- NUS 20	mi- NUS 40	After fur- niches- who stare niya +20
	KCU						KCV			KCU
265	Less than 5.0				+	+	+	+	+	+	34	29	+	29
	From	5,0	to	10,0 incl.	+	+	+	+	+	+	34	29	+
	SV.	10,0	to	20.0 incl.	+	+	+	+	+	+	34	29	+
	SV.	20,0	to	160,0 incl.	29	29	29	29	29	29	+	+	+
295	Less than 5.0				+	+	+	+	+	+	34	29	+	29
	From	5,0	to	10,0 incl.	34	34	34	34	34	34			+
	SV.	10,0	to	20.0 incl.	39	29	29	29	29	29			+
	SV.	20,0	to	100,0 incl.	39	29	29	29	29	29			+
315			To	10,0 incl.	+	+	+	+	+	+	34	29	+	29
	SV.	10,0	to	60,0 incl.	39	29	29	29	29	29			+
325			To	10,0 incl.	39	39	39	29	29	29	34	29	+	29
	SV.	10,0	to	20.0 incl.	34	34	34	29	29	29			+
	SV.	20,0	to	60,0 incl.	39	29	29	29	29	29			+
345			To	12,0 incl.	39	39	39	29	29	29	+	34	+	29
	SV.	12,0	to	32.0 incl.	39	29	29	29	29	29	39	39	+
	SV.	32,0	to	50.0 incl.*	39	29	29	29	29	29	39	39	+
355	Less than 5.0				+	+	+	29	29	29	34	29	+	29
	From	5,0	to	10,0 incl.	+	+	+						+
	SV.	10,0	to	20.0 incl.	39	29	29						+
	SV.	20,0	to	50.0 incl.*	39	29	29						+
375			To	10,0 incl.	39	39	39	34	34	34	+	29	+	29
	SV.	10,0	to	50.0 incl.	39	39	39	29	29	29	+		+
390			To	10,0 incl.	44	44	44	34	34	34	+	29	+	29
	SV.	10,0	to	15.0 incl.	39	39	39	29	29	29	39	29	+
	SV.	15,0	to	50.0 incl.	39	39	39	29	29	29	39	39	+
440			To	10,0 incl.	44	44	44	34	34	34	+	29	+	29
	SV.	10,0	to	32.0 incl.	39	39	39	29	29	29	+		+
	SV.	32,0	to	50.0 incl.*	39	39	39	29	29	29	+		+
* For the data size of the products test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality. Notes 1 the Sign «+" means that the definition of impact strength in accordance with the ordered grade in table 4 carried out for statistical purposes, the results of the tests indicated in the document about quality. 2 allowed the reduction in the rate of impact strength on the same sample with the hub U 15% on a single sample concentrator of the form V — 30%, with mean value of test results must be below the limits specified in table 6.

5.2 Characteristics of performance that are installed on the customer’s request

5.2.1 steel Products with chemical composition depending on the steel grade and composition.

5.2.1.1 the Chemical composition of steel by ladle sample analysis must conform to the standards given in table 7.

In the production of a deviation in the mass fraction of the elements from the rules given in table 7 in accordance with table 8.


Table 7 — Chemical composition of steel by ladle sample analysis

Steel grade*	Mass fraction of elements, %
	C	Si	Mn	P	S	Cr	Ni	Cu	V	other elements
				no more
Non-alloy quality steel
09Г2	not more than 0.12	0,17- 0,37	1,40- 1,80	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
09Г2−1	not more than 0.12	0,17- 0,37	not more than 1.80	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
09G2D	not more than 0.12	0,17- 0,37	1,40- 1,80	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
09G2D-1	not more than 0.12	0,17- 0,37	not more than 1.80	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
09ГСФЮ	not more than 0.12	not more than 0.70	not more than 0.70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,04- 0,12	0,020−0,050 AI; Ti is not more than 0.03; Nb not more than 0.04; total mass fraction of Ti, Nb and V is not more than 0.15
10G2B	not more than 0.12	0,17- 0,37	1,20- 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,02−0,05 Nb
10G2B-1	not more than 0.12	0,17- 0,37	not more than 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,02−0,05 Nb
12G2B	0,10- 0,16	0,17- 0,37	1,30- 1,65	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,02−0,04 Nb
12G2B-1	0,10- 0,16	0,17- 0,37	not more than 1.65	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,02−0,04 Nb
12Г2Ф	0,09- 0,15	0,17- 0,37	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,02- 0,10	-
12Г2Ф-1	0,09- 0,15	0,17- 0,37	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,02- 0,10	-
14G2	0,12- 0,18	0,17- 0,37	1,20- 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
14G2−1	0,12- 0,18	0,17- 0,37	not more than 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
15GF	0,12- 0,18	0,17- 0,37	0,90- 1,20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,12	-
15GF-1	0,12- 0,18	0,17- 0,37	no more than 1.20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,12	-
15G2SF	0,12- 0,18	0,40- 0,70	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,10	-
15G2SF-1	0,12- 0,18	not more than 0.70	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,10	-
16GS	0,12- 0,18	0,40- 0,70	0,90- 1,20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
16GS-1	0,12- 0,18	not more than 0.70	no more than 1.20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
17GS	0,14- 0,20	0,40- 0,60	1,00- 1,40	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
17GS-1	0,14- 0,20	not more than 0,60	not more than 1,40	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
18G2AF	0,14- 0,22	not more than 0,17	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,08- 0,15	0,015−0,030 N
18G2AF-1	0,14- 0,22	not more than 0,17	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,08- 0,15	0,015−0,030 N
17G1S	0,15- 0,20	0,40- 0,60	1,15- 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,020−0,050 AI
17G1S-1	0,15- 0,20	not more than 0,60	not more than 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,020−0,050 AI
17G1S-U	0,15- 0,20	0,40- 0,60	1,15- 1.55 V	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
17G1S-U-1	0,15- 0,20	not more than 0,60	not more than 1.55	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
Steel alloy
07ГФБ	0,06- 0,09	0,20- 0,40	0,80- 1,20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,04- 0,08	0,020−0,050 AI; 0,02−0,06 Nb; 0,010−0,035 Ti; Ca is not more than 0.05; It’s not more than 0.05
07ГФБ-1	0,06- 0,09	0,20- 0,40	no more than 1.20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,04- 0,08	0,020−0,050 AI; 0,02−0,06 Nb; 0,010−0,035 Ti; Ca is not more than 0.05; It’s not more than 0.05
08ХМФчЮА	0,08- 0,13	0,20- 0,40	0,45- 0,60	0,030	0,035	0,60- 0,80	not more than 0.25	not more than 0.30	0,06- 0,10	0,030−0,050 AI; 0,10−0,15 Mo
09G2S	not more than 0.12	0,50- 0,80	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
09G2S-1	not more than 0.12	not more than 0,80	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
09G2SD	not more than 0.12	0,50- 0,80	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
09G2SD-1	not more than 0.12	not more than 0,80	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
09Г2ФБ	0,08- 0,13	0,15- 0,35	1,50- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,09	0,02−0,05 Nb
09Г2ФБ-1	0,08- 0,13	0,15- 0,35	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,09	0,02−0,05 Nb
10G2S1	not more than 0.12	0,80- 1,10	1,30- 1,65	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
10G2S1D	not more than 0.12	0,80- 1,10	1,30- 1,65	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
10G2BD	not more than 0.12	0,17- 0,37	1,20- 1,60	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	0,02−0,05 Nb
10G2BD-1	not more than 0.12	0,17- 0,37	not more than 1,60	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	0,02−0,05 Nb
10KHSND	not more than 0.12	0,80- 1,10	0,50- 0,80	0,030	0,035	0,60- 0,90	0,50- 0,80	0,40- 0,60	not more than 0.12	-
10KHNDP	not more than 0.12	0,17- 0,37	0,30- 0,60	0,070- 0,120	0,035	0,50- 0,80	0,30- 0,60	0,30- 0,50	not more than 0.12	0,08−0,15 Al
10G2FBYU	0,08- 0,13	0,15- 0,35	1,60- 1,80	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,12	0,020−0,050 Al; 0,02−0,06 Nb; 0,010−0,035 Ti
10G2FBYU-1	0,08- 0,13	0,15- 0,35	not more than 1.80	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,05- 0,12	0,020−0,050 Al; 0,02−0,06 Nb; 0,010−0,035 Ti
12GS	0,09- 0,15	0,50- 0,80	0,80- 1,20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
12GS-1	0,09- 0,15	not more than 0,80	no more than 1.20	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
12Г2ФД	0,09- 0,15	0,17- 0,37	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,02- 0,10	-
12Г2ФД-1	0,09- 0,15	0,17- 0,37	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,02- 0,10	-
12Г2С	0,09- 0,15	0,50- 0,80	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
12Г2С-1	0,09- 0,15	not more than 0,80	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	-
12Г2СД	0,09- 0,15	0,50- 0,80	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
12Г2СД-1	0,09- 0,15	not more than 0,80	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	not more than 0.12	-
12ГСБЮ	0,10- 0,14	0,25- 0,50	1,10- 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,010−0,060 AI; 0,03−0,05 Nb; 0,005−0,020 Ti
12ГСБЮ-1	0,10- 0,14	0,25- 0,50	not more than 1,60	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	not more than 0.12	0,010−0,060 AI; 0,03−0,05 Nb; 0,005−0,020 Ti
13ХФЮ	not more than 0.15	0,17- 0,37	not more than 0.70	0,030	0,035	0,50- 0,70	not more than 0.30	not more than 0.25	0,04- 0,09	0,020−0,050 AI; Ti is not more than 0.03; Nb not more than 0.04; total mass fraction of Ti, Nb and V is not more than 0.15
14G2AF	0,12- 0,18	0,30- 0,60	1,20- 1,60	0,030	0,035	not more than 0.40	not more than 0.30	not more than 0.30	0,07- 0,12	0,015−0,025 N
14G2AF-1	0,12- 0,18	not more than 0,60	not more than 1,60	0,030	0,035	not more than 0.40	not more than 0.30	not more than 0.30	0,07- 0,12	0,015−0,025 N
14G2AFD	0,12- 0,18	0,30- 0,60	1,20- 1,60	0,030	0,035	not more than 0.40	not more than 0.30	0,15- 0,30	0,07- 0,12	0,015−0,025 N
14G2AFD-1	0,12- 0,18	not more than 0,60	not more than 1,60	0,030	0,035	not more than 0.40	not more than 0.30	0,15- 0,30	0,07- 0,12	0,015−0,025 N
14KHGS	0,11- 0,16	0,40- 0,70	0,90- 1,30	0,030	0,035	0,50- 0,80	not more than 0.30	not more than 0.30	not more than 0.05	-
15GFD	0,12- 0,18	0,17- 0,37	0,90- 1,20	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,05- 0,12	-
15GFD-1	0,12- 0,18	less than 0.37	no more than 1.20	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,05- 0,12	-
15G2AFD	0,12- 0,18	0,17- 0,37	1,20- 1,60	0,030	0,035	not more than 0.30	not more than 0.30	0,20- 0,40	0,08- 0,15	0,015−0,030 N
15G2AFD-1	0,12- 0,18	less than 0.37	not more than 1,60	0,030	0,035	not more than 0.30	not more than 0.30	0,20- 0,40	0,08- 0,15	0,015−0,030 N
15KHSND	0,12- 0,18	0,40- 0,70	0,40- 0,70	0,030	0,035	0,60- 0,90	0,30- 0,60	0,20- 0,40	not more than 0.12	-
15G2SFD	0,12- 0,18	0,40- 0,70	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,05- 0,10	-
15G2SFD-1	0,12- 0,18	not more than 0.70	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,05- 0,10	-
16G2AF	0,14- 0,20	0,30- 0,60	1,30- 1,70	0,030	0,035	not more than 0.40	not more than 0.30	not more than 0.30	0,08- 0,14	0,015−0,025 N
16G2AF-1	0,14- 0,20	not more than 0,60	no more than 1,70	0,030	0,035	not more than 0.40	not more than 0.30	not more than 0.30	0,08- 0,14	0,015−0,025 N
16G2AFD	0,14- 0,20	0,30- 0,60	1,30- 1,70	0,030	0,035	not more than 0.40	not more than 0.30	0,15- 0,30	0,08- 0,14	0,015−0,025 N
16G2AFD-1	0,14- 0,20	not more than 0,60	no more than 1,70	0,030	0,035	not more than 0.40	not more than 0.30	0,15- 0,30	0,08- 0,14	0,015−0,025 N
18G2AFD	0,14- 0,22	not more than 0,17	1,30- 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,08- 0,15	0,015−0,030 N
18G2AFD-1	0,14- 0,22	not more than 0,17	no more than 1,70	0,030	0,035	not more than 0.30	not more than 0.30	0,15- 0,30	0,08- 0,15	0,015−0,030 N
20ФЮ	no more than 0,22	0,17- 0,37	not more than 0.65	0,030	0,035	not more than 0.30	not more than 0.30	not more than 0.30	0,04- 0,15	0,020−0,050 AI; Ti is not more than 0.03; Nb not more than 0.04; total mass fraction of Ti, Nb and V is not more than 0.15
* Grades of steel designation established in accordance with the applicable documentation for the supply of rolled low-alloy steel and the design documentation and the relevant SNiP. Notes 1 Mass fraction of As in the steel of all grades should not exceed 0,08%. 2 Mass fraction of N in steel, not alloy N, without secondary treatment should be not more than 0,008%, with out-of-furnace processing — not more than 0,010%. A higher mass fraction of N up to 0,012%, with production, irrespective of the ordered categories, including categories, must meet the requirements of tables 11, 12 as part of the rules of impact strength after mechanical aging. 3 allowed mass fraction of N in steel, not alloy N more 0,012%, if the mass fraction of N does not exceed the value of the nitrogen equivalent (). 4 Steel grades 09Г2, 09Г2−1, 09G2S 09G2S-1 and 10KHSND must be limp with aluminum in the range of 0,02−0,06%. 5 allowed the microalloying of steel, Al, Ti and Nb from the calculation of obtaining steel in mass fraction, AI is not more than 0.05%, Ti not more than 0.04%, Nb not more than 0.05%, if the other mass fraction not specified in table 7. 6 CE in the steel grades 07ГФБ, 07ГФБ-1 is introduced for the calculation without considering the heat and chemical analysis is not defined. In the document on quality indicates the calculated value of the mass fraction of Se. 7 Steel grades composition 1 (digit 1 by a dash in the designation of the steel grade) is not recommended for the manufacture of products exposed to the customer to heat treatment. 8 In the case of production using rolling-casting module is allowed to override the lower limit of the mass fraction of C in steel grades 12GS, 14G2, 14KHGS, 14G2AF, 14G2AFD, 15GF, 15GFD and 16GS, provided that all requirements of this standard.

Table 8 — Limit deviations of chemical composition in products

The name of the element	Tolerances for the mass fraction of elements, %
C	±0,02
Mn	±0,10
Si	±0,05
SG	±0,05
Ni	±0,05
Si	±0,05
S	±0,005
R	+0,005
N	±0,005
V	+0,02
	-0,01
Ti	+0,010 -0,005
Nb	+0,010 -0,005
Al	+0,010 -0,005
Notes 1 In the production of steel grade 10KHNDP permitted deviation in the mass fraction of, %: — P; — Al. 2 For elements, mass fraction of which in tables 1 and 7 restricted to an upper limit, use only the positive limit deviation.

5.2.1.2 Products with a guarantee of weldability of (HS) with a normalized carbon equivalent , maximum, %:

0,43 — class of strength 265, 295, 315, 325;

0,46 — for strength classes 345, 355, 375;

0,48 — for strength class 390;

0,51 — for strength class 440.

5.2.1.3 Products strength classes 265, 295, 315, 325, 345, 355, 375, 390 and 440 with the corresponding steel grade, with the designation of the letter D, with increased resistance against atmospheric corrosion. Increased resistance against atmospheric corrosion is guaranteed chemical composition of steel and manufacturing technology.

Note — rental grade 295 from steel 09G2D, 09G2D-1 is manufactured with a thickness up to 32 mm incl.

5.2.1.4 Mechanical properties in the tensile test must meet to:

— long products and structural shapes to the requirements of table 9;

— plate, universal broadband rental and roll-formed sections — requirements table 10.

5.2.1.5 Standards of impact strength depending on the booked category according to table 4 shall be as specified in tables 11 and 12.

5.2.1.6 Products must withstand the bend test at 180° on a mandrel of diameter equal to two thickness of samples without the formation of gaps and cracks.

Allowed bending test production not to, if warranty manufacturer’s satisfactory test results at the consumer.

Table 9 — Mechanical properties in the tensile test of shapes and rolled sections

Class so- ness	The size of the rental in section, mm					Steel grade	Mechanical properties, not less
		Limit current honor , N/mm	Times ing resistance tion , N/mm	Take tive. - tion , %
265			To	100,0	incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	265	430	21
	SV.	100,0	to	250,0	«*
295			To	20,0	incl.	09Г2, 09Г2−1, 09G2D, 09G2D-1	305	440	21
						09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	295	430
	SV.	20,0	to	100,0	incl.	09Г2, 09Г2−1, 09G2D, 09G2D-1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	295	430
	«	100,0	«	160,0	«*
315	To 140,0 incl.*					Grade of steel agreed between manufacturer and user	315	440	21
325			To	60,0	incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 14G2, 14G2−1, 15GF, 15GF-1, 15GFD, 15HSND, 10G2S1, 10G2S1D	325	450	21
	SV.	60,0	to	140,0	«*
345			To	20,0	incl.	09Г2, 09Г2−1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 10KHSND, 10KHNDP, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 15HSND, 15GF, 15GF-1, 15GFD, 15GFD-1	345	480	21
	SV.	20,0	to	140,0	«*
355	To 140,0* incl.					Steel grades to be agreed between manufacturer and user	355	480	21
375			To	20,0	incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 10G2B, 10G2BD, 10KHSND, 15GF, 15GF-1, 15GFD	375	510	21
	SV.	20,0	to	50,0	«*
390			To	20,0	incl.	10KHSND, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	390	530	18
	SV.	20,0	to	50,0	«*
440	Up to 16.0 incl.*					Steel grades to be agreed between manufacturer and user	440	590	19
* For these sizes of rolled test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality.

Table 10 — Mechanical properties in the tensile test plate, universal broadband rental and roll-formed profiles

Class so- ness	Thickness of product, mm					Steel grade	Mechanical properties, not less
		Pre- Affairs current honor, N/mm	Times ing company of Tule- nie , N/mm	Take tive. - tion , %
265	Up to 160,0 incl.					09G2S 09G2S-1, 09G2SD, 09G2SD-1	265	430	21
	16GS, 16GS-1		450
295	To 20.0 incl.					09Г2, 09Г2−1, 09G2D, 09G2D-1	305	440	21
	09G2SD, 09G2SD-1, 16GS, 16GS-1, 10G2S1, 10G2S1D	295	430
	SV. 20,0 to 100.0 incl.					09Г2, 09Г2−1, 09G2D, 09G2D-1, 09G2SD, 09G2SD-1, 16GS, 16GS-1, 10G2S1, 10G2S1D	295	430
	SV. 100,0					09G2S 09G2S-1	295	450
315	60.0 incl.					16GS, 16GS-1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 17G1S, 17G1S-1	315	450	21
	12GS, 12GS-1			26
325	To 10.0 incl.					14G2, 14G2−1, 16GS, 16GS-1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 17GS, 17GS-1, 15GF, 15GF-1, 15GFD, 17G1S, 17G1S-1	325	450	21
	SV.	10,0	to	20,0	incl.	09G2S 09G2S-1	325	470
						14G2, 14G2−1, 16GS, 16GS-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 17GS, 17GS-1, 15GF, 15GF-1, 15GFD, 17G1S, 17G1S-1	325	450
	SV.	20,0	to	60,0	incl.	14G2, 14G2−1, 16GS, 16GS-1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 17GS, 17GS-1, 15GF, 15GF-1, 15GFD, 17G1S, 17G1S-1	325	450
345			To	32,0	incl.	09G2D, 09G2C, 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 14KHGS, 15HSND, 15GF, 15GF-1, 15GFD	345	490	21
	SV.	32,0	to	50,0	incl.*	17GS, 17GS-1, 17G1S, 17G1S-1			23
						10KHNDP	345	470	20
355			To	20,0	incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 17G1S, 17G1S-1, 15GF, 15GF-1, 15GFD	355	490	21
	SV.	20,0	to	50,0	incl.*
375	To 50.0 incl.					10G2B, 10G2B-1, 10G2BD, 10G2BD-1, 15GF, 15GF-1, 15GFD, 10KHSND, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1,17G1S, 17G1S-1	375	510	20
390	To 50.0 incl.					10G2S1, 10G2S1D, 10KHSND, 14G2, 14G2−1, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 15G2AFD, 15G2AFD-1, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1, 16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1	390	510	19
440			To	32,0	incl.	16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1, 18G2AF, 18G2AF-1, 18G2AFD, 18G2AFD-1	440	590
	SV.	32,0	to	50,0	incl.*
* For the data size of the products test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality.

Table 11 — Impact strength of shapes and rolled sections

Class so- ness	The size of the rental in section, mm	Steel grade	Impact strength, j/cm, not less at the temperature of test, °C
			mi- NUS 20	mi- NUS 30	mi- NUS 40	mi- NUS 50	mi- NUS 60	mi- NUS 70	0	mi- NUS 20	mi- NUS 40	After fur- niches- who stare niya +20
			KCU						KCV			KCU
265	To 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	+	+	+	+	+	+	+	+	+	29
	SV. Of 20.0 to 32.0 incl.		29	29	29	+	+	+	+	+	+
	SV. 32,0 to 100,0 incl.		29	29	29	+	+	+	+	+	+
	SV. A 100.0 to 250.0 incl.*		29	29	29	+	+	+	+	+	+
295	Less than 10,0	09Г2, 09Г2−1, 09G2D, 09G2D-1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	39	39	29	29	29	+	+	+	29
	From 10.0 to 20.0 incl.		29	29	29	29	29	29	+	+	+
	SV. Of 20.0 to 32.0 incl.		29	29	29	+	+	+	+	+	+
	SV. 32,0 to 100,0 incl.	10G2S1, 10G2S1D	29	29	29	+	+	+	+	+	+
	SV. 100,0 160,0 up to incl.*		29	29	29	+	+	+	+	+	+
315	140 incl.	Steel grade agreed extracting between manufacturer and consumer	+	+	+	+	+	+	+	+	+	29
325	Less than 5.0	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 14G2, 14G2−1, 15GF, 15GF-1, 15GFD, 15HSND, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	34	34	34	34	34	34	34	+	29
	From 5.0 to 10.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	39	39	34	34	34	34	34	+
		14G2, 14G2−1, 15GF, 15GF-1, 15GFD, 15KHSND	39	34	34	34	34	34	34	34	+
	SV. 10.0 and 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	39	39	29	29	29	34	34	+
		10G2S1, 10G2S1D, 14G2, 14G2−1, 15GF, 15GF-1, 15GFD, 15KHSND	39	29	29	29	29	29	34	34	+
	SV. Of 20.0 to 32.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	39	39	29	29	29	34	34	+
		10G2S1, 10G2S1D, 14G2, 14G2−1, 15GF, 15GF-1, 15GFD, 15KHSND	29	29	29	+	+	+	+	+	+
	SV. To 32,0 60,0 incl.	10G2S1, 10G2S1D	29	29	29	+	+	+	+	+	+
	SV. To 60,0 140,0 incl.*		29	29	29	+	+	+	+	+	+
345	Less than 5.0	09Г2, 09Г2−1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 10KHSND, 10KHNDP, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 15KHSND	39	39	39	29	29	29	39	39	+	29
	From 5.0 to 10.0 incl.	09Г2, 09Г2−1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	39	39	34	34	34	39	39	+
		10G2S1, 10G2S1D, 10KHSND, 10KHNDP, 15KHSND	39	39	39	29	29	29	39	39	+
	SV. 10.0 and 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 15GF, 15GF-1, 15GFD	29	29	29	+	+	+	+	+	+
	SV. To 20,0 140,0 incl.*		29	29	29	+	+	+	+	+	+
355	To 140,0 incl.	Steel grade agreement sbivautsa between manufacturer and consumer	+	+	+	+	+	+	+	+	+	29
375	To 10.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2B, 10G2BD, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1	39	39	39	+	+	+	+	+	+	29
	SV. 10.0 and 20.0 incl.	10KHSND, 15GF, 15GF-1, 15GFD	29	29	29	+	+	+	+	+	+
	SV. Of 20.0 to 50.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2B, 10G2BD, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 10KHSND, 15GF, 15GF-1, 15GFD	+	+	+	+	+	+	+	+	+
390	Less than 5.0	10KHSND, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	39	39	39	34	34	34	+	+	+	29
	From 5.0 to 10.0 incl.	10KHSND	49	49	49	34	34	34	+	+	+
		15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	39	Thirty nine	39	34	34	34	+	+	+
	SV. 10,0 to 16,0 incl.	10KHSND	39	39	39	29	29	29	+	+	+
		15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	34	34	34	29	29	29	+	+	+
	SV. 16.0 to 20.0 incl.	15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	34	34	34	+	+	+	+	+	+
	SV. Of 20.0 to 50.0 incl.	15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	+	+	+	+	+	+	+	+	+
440	Up to 16 incl.	Steel grade agreed extracting between manufacturer and consumer	+	+	+	+	+	+	+	+	+	29
* For these sizes of rolled test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality. Notes 1 the Sign «+" means that the definition of toughness depending on the ordered categories in table 4 carried out for statistical purposes. The results of the tests are a symptom of rejection is specified in the document of quality. 2 For round steel impact test bend is carried out, starting from diameter 12 mm and more. 3 For rolled sections with a thickness (diameter) of 12 mm or more, made of slab, the test results of impact strength KCU at a temperature of minus 50 °C, -60°C, -70°C are not rejection symptom till 01.01.2016 are specified in the document of quality. 4 allowed the reduction in the rate of impact strength on the same sample with the hub U 15% on a single sample concentrator of the form V — 30%, with mean value of test results must be below the limits specified in table 11.

Table 12 — Impact strength of the plate and universal broadband rental and roll-formed profiles

Class so- ness	Thickness of product, mm	Steel grade	Impact strength, j/cm, not less at the temperature of test, °C
			mi- NUS 20	mi- NUS 30	mi- NUS 40	mi- NUS 50	mi- NUS 60		mi- NUS 70	0	mi- NUS 20	mi- NUS 40	After fur- no- ches- who stare niya +20
			KCU							KCV			KCU
265	To 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	34	34	29		29	29	39	39	+	29
	SV. To 20,0 160,0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	34	34	29		29	29	39	39	+
		16GS, 16GS-1	39	29	29	24		24	24	+	+	+
295	Less than 5.0	09Г2, 09G2D, 09G2C, 09G2S-1, 09G2SD, 09G2SD-1	+	+	+	+		+	+	34	29	+	29
	From 5.0 to 10.0 incl.		34	34	34	34		34	34
	SV. 10.0 and 20.0 incl.		39	29	29	29		29	29
	SV. Of 20.0 to 32.0 incl.	09Г2, 09Г2−1, 09G2D, 09G2D-1	39	39	39	24		24	24	34	29	+
		09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	29	29	24		24	24	39	39	+
		16GS, 16GS-1	39	29	29	24		24	24	34	29	+
	SV. 32,0 to 100,0 incl.	10G2S1, 10G2S1D	39	29	29	24		24	24	34	29	+
315	To 10.0 incl.	12GS, 12GS-1	+	+	+	+		+	+	34	29	+	29
	SV. 10.0 and 20.0 incl.	16GS, 16GS-1	39	29	29	24		24	24
	SV. Of 20.0 60.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	29	29	24		24	24	39	39	+
		10G2S1, 10G2S1D, 17G1S, 17G1S-1	39	29	29	24		24	24	34	29	+
325	Less than 5.0	14G2, 14G2−1, 16GS, 16GS-1	39	39	39	29		29	29	34	29	+	29
	From 5.0 to 10.0 incl.	14G2, 14G2−1	39	39	34	29		29	29
		16GS, 16GS-1	39	39	39	29		29	29
	SV. 10.0 and 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	34	34	29		29	29	39	39	+
		10G2S1, 10G2S1D, 17GS, 17GS-1	34	34	34	29		29	29	34	29	+
		14G2, 14G2−1	39	39	29	29		29	29
	SV. Of 20.0 to 32.0 incl.	14G2, 14G2−1, 15GF, 15GF-1, 15GFD	39	29	29	24		24	24
	SV. To 32,0 60,0 incl.	10G2S1, 10G2S1D, 17G1S, 17G1S-1	39	29	29	24		24	24
345	Less than 5.0	09G2D, 09G2C, 09G2S-1, 09G2SD, 09G2SD-1	39	39	39	29		29	29	39	39	+	29
		10G2S1, 10G2S1D, 10KHNDP, 14KHGS, 15HSND, 17GS, 17GS-1	39	39	39	29		29	29	+	34	+
	From 5.0 to 12.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	39	39	29		29	29	39	39	+	29
		10G2S1, 10G2S1D, 10KHNDP, 14KHGS, 15KHSND	39	39	39	29		29	29	+	34	+
		17GS, 17GS-1	44	44	44	29		29	29	+	39	+
	SV. 12.0 to 20.0 incl.	15GF, 15GF-1, 15GFD, 17G1S, 17G1S-1	39	29	29	29		29	29	39	39	+
	SV. Of 20.0 to 32.0 incl.	15HSND, 17G1S, 17G1S-1	39	29	29	29		29	29	39	39	+
	SV. 32.0 to 50.0 incl.*		39	29	29	29		29	29	39	39	+
355	To 10.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	+	+	+	29		29	29	39	39	+	29
		10G2S1, 10G2S1D, 17G1S, 17G1S-1	+	+	+	29		29	29	34	29	+
	SV. 10.0 and 20.0 incl.	15GF, 15GF-1, 15GFD, 17G1S, 17G1S-1	39	29	29	29		29	29	34	29	+
	SV. Of 20.0 to 50.0 incl.*		39	29	29	Twenty nine		29	29	34	29	+
375	To 10.0 incl.	10G2B, 10G2B-1, 10G2BD, 10G2BD-1, 15GF, 15GF-1, 15GFD	39	39	39	34		34	34	+	29	+	29
		10KHSND	39	39	39	34		34	34	39	39	+
	SV. 10.0 to 32.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1	39	39	39	29		29	29	39	39	+
		14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1	39	39	39	29		29	29	+	29	+
	SV. 32.0 to 50.0 incl.	14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 17G1S, 17G1S-1	39	39	39	29		29	29	+	29	+
390	To 10.0 incl.	10KHSND	44	44	44	34		34	34	39	39	+	29
		12G2B, 12G2B-1	44	44	44	34		34	34	+	39	+
		10G2S1, 10G2S1D, 14G2, 14G2−1, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 15G2AFD, 15G2AFD-1, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	44	44	44	34		34	34	+	29	+
	SV. 10.0 to 15.0 incl.	10KHSND	39	39	39	29		29	29	39	39	+
		10G2S1, 10G2S1D, 14G2, 14G2−1, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 15G2AFD, 15G2AFD-1, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	39	39	39	29		29	29	39	29	+
	SV. Of 15.0 to 32.0 incl.	10KHSND	49	49	49	29		29	29	39	39	+
		10G2S1, 10G2S1D, 14G2, 14G2−1, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 15G2AFD, 15G2AFD-1, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1	39	39	39	29		29	29	39	39	+
	SV. 32.0 to 40.0 incl.	10KHSND	49	49	49	29		29	29	39	39	+
		14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1	39	39	39	29		29	29	39	39	+
	SV. To 50,0 40,0 incl.	10KHSND, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1	39	39	39	29		29	29	39	39	+
440	To 10.0 incl.	16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1, 18G2AF, 18G2AF-1, 18G2AFD, 18G2AFD-1	44	44	44	34		34	34	39	39	+	29
	SV. 10.0 to 32.0 incl.		39	39	39	29		29	29	39	39	+
	SV. 32.0 to 50.0 incl.*		39	39	39	29		29	29	39	39	+
* For the data size of the products test results of mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality. Notes 1 the Sign «+" means that the definition of toughness depending on the ordered categories in table 4 carried out for statistical purposes. The results of the tests are a symptom of rejection is specified in the document of quality. 2 allowed the reduction in the rate of impact strength on the same sample with the hub U 15% on a single sample concentrator of the form V — 30%, with mean value of test results must be below the limits specified in table 12.

5.2.2 Production of steel with a mass fraction S from 0.020% to 0.040%.

5.2.3 Production of steel with a mass fraction of S not more than 0.005% P — not more than 0,010%.

5.2.4 plates with limiting the negative limit deviation on thickness. The sum of limit deviations should correspond to the sum of the limit deviations for the thickness according to GOST 19903.

5.2.5 Production for products in cold-resistant design (CL) after heat treatment (PHT) or thermomechanical treatment (TMT) specified in the order.

5.2.6 Products strength classes 315 and 345 in the normalized condition (N) or after the controlled rolling (CP), controlled rolling with subsequent vacation (KPO); strength classes 390, 440 after heat hardening (TU) or controlled rolled (CP), controlled rolling with subsequent vacation (KPO).

5.2.7 Products of strength class 390 and 440 with the restriction of the upper limit of the provisional resistance values not more than 180 N/mmhigher than stated in tables 2, 3, 9 and 10.

5.2.8 Products regulated upper yield point.

5.2.9 rolled Plates in coils (rolls) with a run of properties for yield strength of a single coil strip (coil) of 30 to 50 N/mm.

5.2.10 steel Products with a normalized size of the austenitic grain (NZ) in the range of 5 to 8 numbers according to GOST 5639.

Note — Requirements 5.2.2−5.2.4, 5.2.7−5.2.9 in order to indicate by reference to the corresponding item.

5.3 Additional product requirements, coordinate between the manufacturer and the customer, are given in appendices B and C.

In additional requirements B. 1-B. 14 are determined by reference to the relevant paragraph of this Annex which sets out the requirement, for example: «B. 1».

5.4 Examples of symbols rolled at the order are given in Appendix G.

5.5 Labeling and packaging of hot-rolled and bent profiles in accordance to shot 7566.

6 acceptance Rules

6.1 acceptance of products — according to GOST 7566 with the additions listed below.

6.2 Products take parties.

The party should consist of products:

one strength class;

— one species;

— one profile (profile);

— one size in thickness (same diameter) or one range for the thickness (diameter) for products subjected to heat treatment with separate heating. The range of thicknesses (diameters) to join the party defined by the manufacturer;

— one mode of heat treatment.

The weight of the batch shall not exceed 350 T.

Batch of products, made of steel of a certain brand and pour it into ingots, must be, in addition, one melting ladle.

For slab, it is allowed to form a party of several heats, while the ladle analysis heats the difference between the mass fraction of elements must not exceed: — 0,04%, MP%to 0.15%.

The difference between the mass fraction and MP is guaranteed by the technology of production without testing.

6.3 Each batch of products is accompanied by a quality document, issued in accordance with GOST 7566, [3], containing:

— trademark and (or) the name of the manufacturer;

— the name of the customer;

— the order number;

— date of issuance of the document of quality;

— the number of the wagon or vehicle;

— name of the product in accordance with this standard, the size (number), name of profile, number of seats and the total weight;

— strength grade, steel grade (if one is specified in the order), the category of delivery;

— mass fraction of all chemical elements normalized according to the analysis of ladle samples or analysis of ladle samples and products with the appropriate mark (if control was carried out);

— number of melt during casting in the ingot (lot)

— precision rolling;

— the kind of flatness to plate;

— character edge for plate;

class curvature of shapes and rolled sections;

the testing results of mechanical properties when tensile tests and impact bending;

group surface quality to rolled;

— delivery status — in accordance with 5.1.3;

— the designation of this standard;

— stamp indicating the technical inspection and acceptance of products by quality.

6.3.1 For rental, taken with the characteristics set by the user in accordance with 5.2, or additional requirements specified in Annex b In the document of quality additionally indicate the results of the tests on ordered indices.

6.3.2 For products with a guarantee of weldability indicate the designation of GS and the value of carbon equivalent.

6.4 To check the product quality from batch select:

— for chemical analysis — samples according to GOST 7565*;
__________________
* In the Russian Federation can be used by GOST R ISO 14284−2009 «Steel and cast iron. The selection and preparation of samples for determination of chemical analysis».


— to control the size of 10% for each product, but at least five pieces of bars (bars, coils, profiles, sheets) and at least two coils;

— to control the surface quality requirements for the edges and ends (in terms of bundles) — 10% bars (bands, coils, profiles), but not less than five pieces, and each sheet of the roll;

— ultrasonic inspection (UT) internal defects (if possible) — each unit of production;

— to control quality at other indicators — the two rods (coils, profile sheets), two bands, and one roll.

When you combine products into one shipment for heat treatment to control the selected unit of maximum cross-section.

6.4.1 If the batch of products in accordance with the order consists of one unit of output, this unit is the control.

6.5 If unsatisfactory test results of at least one indicator in a custom control it is carried out re-tests on twice the number of samples.

6.5.1 For the production batch consisting of one unit, twice the number of samples taken from the same unit.

6.5.2 Upon receipt of satisfactory results of re-testing all the unit included in the party think fit, except units of production, which showed unsatisfactory results during the initial trials.

6.5.3 Upon receipt of unsatisfactory results, re-testing allowed the manufacturer to conduct continuous monitoring for indicators with sampling procedures by which these tests are not met.

Allowed to put the rent re-heat treatment (if performed), the test is considered to be the primary definition of all characteristics.

6.5.4 If unsatisfactory results of the analysis of ladle samples the chemical composition of steel can be certificated for the analysis of finished products. In the document as indicated by the results of the two tests.

7 control Methods

7.1 Chemical composition of steel is determined according to GOST 22536.0 to GOST 22536.12, GOST 27809,12344 GOST — GOST 12348, 12350 GOST — GOST 12352, 12355 GOST — GOST 12359, 12361 GOST, GOST 12364, 17745 GOST, GOST 18895, 28033 GOST, GOST 28473*. Allowed the use of other methods of analysis, ensuring the necessary measurement accuracy.
_________________
* Russia may use GOST R ISO 4943−2010 «Steel and cast iron. Determination of the copper content. Spectrometric method of atomic absorption in flame» and GOST R 54153−2010 «Steel. Method of atomic-emission spectral analysis».


The differences in quality assessment methods assessment is carried out according to specified standards.

7.2 the value of the carbon equivalent is calculated by the formula

, (1)

where C, Mn, Si, Cr, Ni, si, V, R — mass fraction of carbon, manganese, silicon, chromium, Nickel, copper, vanadium and phosphorus.

7.3 the Amount of nitrogen equivalent is calculated by the formula

, (2)

where Al, Ti, V, Nb, — mass fraction of aluminum, titanium, vanadium, niobium.

7.4 quality Control the surface plate and universal broadband rental is carried out according to GOST 14637. Control the size and the shape deviations are:

— HRP — according to GOST 19903;

— universal broadband rental — GOST 82.

Control of surface quality, dimensions and deviations from the form are:

— high-quality and shaped hire — GOST 535;

— roll — formed profiles according to GOST 11474.

In coordination with the customer is allowed to rent a contoured control surface quality, sizes and the shape deviations is not carried out, and to ensure these indicators manufacturing technology.

Description of defects — according to GOST 21014. Methods of measurements of form deviation — according to GOST 26877.

7.5 Stratification of hire for cut control inspection of edges and ends without the use of magnifying devices.

If necessary, the quality of the metal on the edges of the plate and universal broadband rental check by removing the chip, wherein the chip splitting is a sign of discontinuity flaws of metal.

7.6 Ultrasonic testing of rolled plates is carried out in accordance with GOST 22727 or to the technical documentation of the manufacturer.

7.7 Ultrasonic inspection of internal defects of rolled products is carried out in accordance with GOST 21120 or technical documentation of the manufacturer.

7.8 Sampling for mechanical and technological tests of hire is carried out according to GOST 7564 (state of delivery). Of long products, shapes and universal broadband rolled samples cut along the direction of rolling of the plate — across the direction of rolling, and at the request of the customer — the direction of rolling, except for testing the impact strength on specimens with a sharp notch (KCV). For testing the impact strength (KCV) samples taken along the direction of rolling.

Allowed on agreement between the consumer and the manufacturer samples the impact strength (KCV) away across the direction of rolling.

For rolled sections with a diameter or a side of a square more than 120 mm allowed the mechanical properties to determine on samples cut from forge or rolled billets with cross-section from 90 to 100 mm. Norms of mechanical properties in this case should conform to the standards specified in tables 2, 5, 9 and 11.

The quality of bent profiles control on the workpiece.

7.9 each control unit is taken to:

— tensile tests — one sample;

— drop test, bend — two samples for the respective test conditions;

— testing the impact strength after mechanical aging, two sample;

— bend test — one sample;

control of grain size — one sample.

7.10 production Test tensile carried out on the samples five times the length of the churchyard 1497.

7.11 Test the impact strength of products with nominal thickness up to 10 mm incl. carried out according to GOST 9454 on samples of type 1, 2 or 3 (KCU) or type 11, 12, 13 (KCV). For the production of a thickness of > 10 mm impact test bend is carried out according to GOST 9454 on samples of type 1 (KCU) or type 11 (KCV), while for long products round bars from diameter 12 to 16 mm, incl. drop test bending is carried out on samples of type 3 (KCU) or type 13 (KCV) according to GOST 9454.

Test the impact strength of shaped products with thickness from 3 to 4 mm, plate thickness from 4.0 mm to 5.0 mm may be performed on samples with a width equal to the thickness of the rental.

7.12 Testing the impact strength after mechanical aging is carried out according to GOST 7268. The types of samples depending on the thickness of products should conform to 7.11.

7.13 production Testing bending is carried out according to GOST 14019.

7.14 Control of grain size is carried out according to GOST 5639.

7.15 If you are using statistical and other non-destructive methods of control of mechanical properties according to GOST 30415* control of mechanical properties by the manufacturer is allowed not to perform.
________________
* In the Russian Federation can be used by GOST R 50779.10−2000 (ISO 3534−1-93) «Statistical methods. Probability and fundamentals of statistics. Terms and definitions», GOST R 50779.11−2000 (ISO 3534−2-93) «Statistical methods. Statistical quality control. Terms and definitions». 14−1-34−90 «Statistical acceptance control quality of steel products for correlations between the parameters."


The manufacturer guarantees the compliance of products to requirements of this standard. The differences in quality assessment and periodic quality checks of product is used control methods stipulated by this standard.

8 Transportation and storage

8.1 Transportation and storage of rental — according to GOST 7566, roll — formed profiles according to GOST 11474.

9 Requirements for safety and environmental protection

9.1 the Products are fire and explosion proof, non-toxic, and does not require special measures during transport, storage and processing.

10 manufacturer’s Warranty

10.1 the Manufacturer guarantees the compliance of products with requirements of this standard under the conditions of transportation and storage.

Annex a (recommended). List of steel grades for production of various types and strength classes

Appendix A
(recommended)

A. 1 steel grade for long products (round, square, hexagonal bars and flat bars), structural shapes are given in table A. 1, to plate, universal broadband, and bent profiles in table A. 2.


Table A. 1 — steel grades for long products (round, square, hexagonal and flat) and sections

Class so- ness	The size of the rental in section, mm	The grade of steel, providing the strength class
265	To 250.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1
295	To 32.0 incl.	09Г2, 09G2D, 09G2C, 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1
	SV. 32.0 to 160,0 incl.	10G2S1, 10G2S1D
315	To 140,0 incl.	Steel grades to be agreed between manufacturer and user
325	To 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1
	To 32.0 incl.	14G2, 14G2−1, 15GF, 15GF-1, 15GFD, 15GFD-1, 15KHSND
	SV. To 10,0 140,0 incl.	10G2S1, 10G2S1D
345	To 10.0 incl.	09Г2*, 09Г2−1*, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 10KHSND, 10KHNDP, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 15KHSND
	SV. To 10,0 140,0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 15GF, 15GF-1, 15GFD
355	To 140,0 incl.	Steel grades to be agreed between manufacturer and user
375	To 50.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2B, 10G2BD, 10KHSND, 12Г2С, 12Г2С-1, 12Г2СД, 12Г2СД-1, 12Г2Ф, 12Г2Ф-1, 12Г2ФД, 12Г2ФД-1, 15GF, 15GF-1, 15GFD
390	Up to 16.0 incl.	10KHSND
	To 50.0 incl.	15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1
440	Up to 16.0 incl.	Steel grades to be agreed between manufacturer and user
* Allowed the application of controlled rolling or controlled rolling with subsequent accelerated cooling (KP).

Table A. 2 — types of steel for plate, universal broadband rental and roll-formed profiles

Class so- ness	Thickness of product, mm	The grade of steel, providing the strength class for various sizes of products
265	To 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1
	SV. To 20,0 160,0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 16GS, 16GS-1
295	To 20.0 incl.	09Г2, 09Г2−1, 09G2D, 09G2D-1
	SV. Of 20.0 to 32.0 incl.	09Г2, 09Г2−1, 09G2D, 09G2D-1, 09G2S 09G2S-1, 09G2SD, 09G2SD-1, 16GS, 16GS-1
	SV. 32,0 to 100,0 incl.	10G2S1, 10G2S1D
315	To 10.0 incl.	12GS, 12GS-1
	From 10.0 to 20.0 incl.	16GS, 16GS-1
	SV. Of 20.0 60.0 incl.	09G2S*, 09G2S-1*, 10G2S1, 10G2S1D, 17G1S*, 17G1S-1*
325	To 10.0 incl.	16GS, 16GS-1
	SV. 10.0 and 20.0 incl.	09G2S 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 17GS, 17GS-1
	SV. Of 20.0 to 32.0 incl.	15GF, 15GF-1, 15GFD
	To 32.0 incl.	14G2, 14G2−1
	From 32.0 to 60,0 incl.	10G2S1, 10G2S1D, 17G1S*, 17G1S-1*
345	To 50.0 incl.	09G2D, 09G2C, 09G2S-1, 09G2SD, 09G2SD-1, 10G2S1, 10G2S1D, 10KHNDP, 14KHGS, 17GS, 17GS-1 15GF, 15GF-1, 15GFD, 17G1S, 17G1S-1
		15HSND, 17G1S*, 17G1S-1*
355	To 50.0 incl.	10G2S1, 10G2S1D 09G2S 09G2S-1, 09G2SD, 09G2SD, 17G1S, 17G1S-1
		15GF, 15GF-1, 15GFD, 17G1S*, 17G1S-1*
375	To 10.0 incl.	10G2B, 10G2B-1, 10G2BD, 10G2BD-1, 10KHSND, 15GF, 15GF-1, 15GFD
	SV. 10.0 to 32.0 incl.	09G2S*, 09G2S-1*, 14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1
	SV. 32.0 to 50.0 incl.	14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 17G1S*, 17G1S-1*
390	To 10.0 incl.	12G2B, 12G2B-1
	To 32.0 incl.	10G2S1**, 14G2**, 14G2−1**, 15G2AFD, 15G2SF, 15G2SF-1, 15G2SFD, 15G2SFD-1
	To 40.0 incl.	10KHSND
	To 50.0 incl.	14G2AF, 14G2AF-1, 14G2AFD, 14G2AFD-1, 10KHSND
	SV. 32.0 to 50.0 incl.	16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1
440	To 32.0 incl.	16G2AF, 16G2AF-1, 16G2AFD, 16G2AFD-1, 18G2AF, 18G2AF-1, 18G2AFD, 18G2AFD-1
* Allowed the application of controlled rolling or controlled rolling with subsequent accelerated cooling (KP). ** Controlled rolling (KP) after thermomechanical processing (TMO), after thermal hardening (TU). The text of the document matches the original. — Note the manufacturer’s database.

Annex B (reference). Additional product requirements

Appendix B
(reference)

B. 1 Supply of long products round bars groups and classes quality S235JR, S235J0, S235J2, S275JR, S275J0, S275J2, S355JR, S355J0, S355J2.

B. 1.1 Chemical composition of steel shall conform to the standards specified in table B. 1.


Table B. 1 — Chemical composition of steel

Refer to the teachings of the group and the class of quality of hire	Mass fraction of elements, %
	With no more than			Si	MP	R	S	N	Si	AI
	the nominal diameter of the rolling, mm
	Up to 16.0 incl.	SV. 16.0 to 40.0 incl.	SV. To 180,0 40,0 incl.
				no more
S235JR, S235J0, S235J2	0,17	0,17	0,20	0,55	1,40	0,025	0,025	0,012	0,25	0,020- 0,050
S275JR, S275J0, S275J2	0,18	0,18	0,20	0,55	1,50	0,025	0,025	0,012	0,25	0,020- 0,050
S355JR, S355J0, S355J2	0,20	0,20	0,22	0,55	1,60	0,025	0,025	0,012	0,25	0,020- 0,050
Maximum deviations in production, %	+0,02			+0,05	+0,10	+0,005	+0,005	+0,002	-	±0,005
Notes 1 To hire quality class «JR» allowed mass fraction in steel, Al0,050%. 2 allow for the processing of steel Sa, the mass fraction of CAis 0.003%. 3 To improve the machinability of products is allowed to agree in order the mass percent of S in steels from 0.020% to 0.040%. 4 allowed in steel mass fraction of Nb, and 0.05%, Vof 0.13%, Tiof 0.05%. 5 the symbol «-" means that the maximum deviation for Cu is not allowed.

B. 1.2 the value of the carbon equivalent shall conform to the standards specified in table B. 2.


Table B. 2 — Carbon equivalent

The group designation and the class of quality of hire	Carbon equivalent , %, for rental nominal diameter, mm
	Up to 30.0 incl.	SV. 30,0−40,0 incl.	SV. Of 40.0 to 150.0 incl.	SV. To 150,0 180,0 incl.
S235JR, S235J0, S235J2	0,35	0,35	0,38	0,40
S275JR, S275J0, S275J2	0,40	0,40	0,42	0,44
S355JR, S355J0, S355J2	0,45	0,47	0,47	0,49

B. 1.3 Mechanical properties of the rolled products should conform with the test:

— tensile standards specified in table B. 3;

— the impact strength — the standards specified in table B. 4.


Table B. 3 — Mechanical properties of the rolled products in the tensile test

The group designation and the class of quality of hire	Mechanical properties, not less
	Yield strength , N/mm, for rental nominal diameter, mm							Tensile strength , N/mm, for rental nominal diameter, mm			Elongation , %, for rental nominal diameter, mm
	Up to 16.0 incl.	SV. 16.0 to 40.0 incl.	SV. 40,0 to 63,0 incl.	SV. To 63,0 80,0 incl.	SV. 80.0 to 100.0 incl.	SV. A 100.0 to 150.0 incl.	SV. To 150,0 180,0 incl.	100.0 incl.	SV. A 100.0 to 150.0 incl.	SV. To 150,0 180,0 incl.	SV. 12.0−40.0 incl.	SV. 40,0 to 63,0 incl.	SV. 63,0 to 100,0 incl.	SV. A 100.0 to 150.0 incl.	SV. To 150,0 180,0 incl.
S235JR, S235J0, S235J2	235	225	215	215	215	195	185	360- 510	350- 500	340- 490	26	25	24	22	21
S275JR, S275J0, S275J2	275	265	255	245	235	225	215	410- 560	400- 540	380- 540	23	22	21	19	18
S355JR, S355J0, S355J2	355	345	335	325	315	295	285	470- 630	450- 600	450- 600	22	21	20	18	17

Table B. 4 — Mechanical properties of rolled when testing the impact strength

The group designation and the class of quality of hire	Test temperature, °C	Work strike KV, j
		The diameter of the rolling, mm
		12.0 to 150.0 incl.	SV.To 150,0 180,0 incl.
S235JR	+20	27	27
S235J0	0	27	27
S235J2	minus 20	27	27
S275JR	+20	27	27
S275J0	0	27	27
S275J2	minus 20	27	27
S355JR	+20	27	27
S355J0	0	27	27
S355J2	minus 20	27	27

B. 2 Supply plate strength classes 460, 500, 550, 600, 620, 650, 700.

B. 2.1 Chemical composition by ladle sample analysis and the carbon equivalent of the steel shall be as given in table B. 5.


Table B. 5 — Chemical composition of steel carbon equivalent

Class so- ness	Mass fraction of elements, %, not more											Carbon Rodney equi- valent , %, not more
	With	Si	MP	S	R	SG	Ni	V	As	N	Other elements, not more
460, 500	0,12	0,50	1,90	0,035	0,030	0,60	Of 1.00	0,20	0,080	0,012	AI — 0,050; Ti — 0,15; Nb — 0,10; Mo — 0,70	0,47
550	0,12	0,50	1,90	0,035	0,030	0,60	Of 1.00	0,20	0,080	0,012	Al — 0,050; Ti — 0,15; Nb — 0,10; Mo — 0,70	0,50
600	0,12	0,50	1,90	0,035	0,030	0,60	Of 1.00	0,20	0,080	0,012	Al — 0,050; Ti — 0,15; Nb — 0,10; Mo — 0,70	0,55
620	0,12	0,50	1,90	0,035	0,030	0,60	Of 1.00	0,20	0,080	0,012	Al — 0,050; Ti — 0,22; Nb — 0,10; Mo — 0,70	0,57
650, 700	0,12	0,50	2,10	0,035	0,030	0,60	Of 1.00	0,20	0,080	0,012	Al — 0,050; Ti — 0,22; Nb — 0,10; Mo — 0,70	0,60
Note — In ready rental permitted deviation in chemical composition from the rules table V. 5 in accordance with table 8.

B. 2.2 Mechanical properties of the rolled products in the tensile test and the conditions for the bend test shall be as specified in table B. 6, the impact strength is specified in table B. 7.


Table B. 6 — Mechanical properties in the tensile test and the test conditions in bending

Strength class	The thickness of the rolled at the strength class, mm, not more	Mechanical properties			Bending angle up to 90° (transverse samples), andthe thickness of the sample, d is the diameter of the mandrel
		Yield strength , N/mm, not less	Tensile strength, N/mm	Elongation , %, not less
460	50	460	540−720	17	d=3a
500	50	500	550−770	15
550	50	550	600−820	14
600	50	600	650−870	13
620	50	620	670−890	12
650	50	650	700−890	12
700	50	700	750−940	12

Table B. 7 — Impact strength

Strength class	Thickness of product, mm	Impact strength, j/cm, not less at the temperature of test, °C
		+20	mi- NUS 20	mi- NUS 30	mi- NUS 40	mi- NUS 50	mi- NUS 60	mi- NUS 70	0	mi- NUS 20	After mechanical IC stare niya +20
		KCU							KCV		KCU
460, 500, 560, 600, 620, 650, 700	To 10.0 incl.	+	44	44	44	34	34	34	+	29	29
	SV. 10.0 to 32.0 incl.	+	39	39	39	29	29	29	+
	SV. 32.0 to 50.0 incl.	+	39	39	39	29	29	29	+
* The results of testing the mechanical properties are not rejection symptom till 01.01.2016 are specified in the document of quality. Notes 1 the Sign «+" means that the definition of impact strength in accordance with the ordered grade in table 4 carried out for statistical purposes. The results of the tests are a symptom of rejection is specified in the document of quality. 2 When testing the impact strength of specimens with concentrators of the form U (KCU) is allowed on a single sample, the rate decrease of impact strength by 15% after testing with the hub of the form V (KCV) — sample rate decrease of impact strength by 30%, with mean value of test results must be below the limits specified in table 6.

B. 3 Supply of products with the chemical composition according to table 7 with the exception of Si as an alloying element, and the introduction of Ti, Nb and V with a mass fraction of not more than 0.06% each in their total mass fraction of not more than 0.15%, subject to fulfilment of all requirements of the standard.

This paragraph does not apply to products supplied with the optional rules of the toughness.

B. 4 Delivery of high-quality and shaped hire strength classes 460 and 500 of steel with a chemical composition similar to those used for HRP in table B. 5. Norms of mechanical properties in the tensile test and impact bending coordinate between the manufacturer and the customer.

B. 5 Supply of rolled plates with thickness from 10 to 40 mm from alloy steel grade 16Х2ГСБ strength classes 500 and 600.

B. 5.1 Chemical composition of steel shall conform to the standards specified in table B. 8.


Table B. 8 Chemical composition of steel

Steel grade	Mass fraction of elements, %
	C	Si	Mn	Cr	Nb	S	R
						no more
16Х2ГСБ	0,14−0,18	0,30−0,70	0,50−0,90	1,10−1,60	0,03−0,06	0,010	0,015
Maximum deviation in %	In accordance with table 8
Note — Steel deoxidized AI to ensure its mass fraction 0,02%-0,06% and microlegend Sa or other alloys Sa is based on obtaining (without groove) from 0.002% to 0,030% Sa in steel. Mass fraction of CA chemical analysis does not determine the document about the quality of the point estimate.

B. 5.2 hire put in a thermally hardened state (TS).

It is possible to supply sheets in normalized (N) or hot rolled condition.

B. 5.3 Mechanical properties of the rolled products in the tensile test and impact strength in the as delivered must conform to the standards specified in table B. 9.


Table B. 9 — Mechanical properties

Strength class	Mechanical properties
	Tensile strength, N/mm	Yield strength , N/mm	Elongation , %	Impact strength, j/cm
				KCU	KCV
			not less than
500	590−830	490−735	15	39	29
600	690−930	590−835	14	39	29
Note — Impact strength is determined as the arithmetic average of the test results of three samples. On the same sample allowed the decline in standards impact resistance 10 j/cm.

B. 5.4 rolled strength classes 500 and 600 shall withstand the bend test at 120° around mandrel of diameter, equal to three thicknesses of hire, without tears and cracks.

B. 6 bars round bars with preliminary mechanical treatment without regulation of surface roughness (MBT).

B. 7 bars, round bars chamfered, with one (F1) or both sides (F2). The chamfer dimensions are not regulated.

B. 8 hire with the descaling (UO). Hire, purified from dross by etching, should be greased on both sides with grease that protects against corrosion. The amount of lubricant on the surface of the rental is not standardized.

With the consent of the consumer a supply of rolled, without oiling, in this case, the surface rental allowed rust spots and scratches, due to lack of grease.

B. 9 black bars for the deburring with one hand without crushing the ends (УЗ1) or deburring both sides without crumpling all (UZ2). Deburring is allowed chamfering. The chamfer size is not regulated.

B. 10 bars, without burrs and crushed ends (УЗ3). The «Cup» or remnants of «cups» on the box with the pre-machining are not a sign of rejection. The form of «cups» and the remnants of the «cups» are given in Appendix B.

B. 11 black plate, ultrasonic testing (UT). Grade continuity is established by agreement between manufacturer and customer in accordance with GOST 22727. Control the marginal zones is performed according to the requirement of the customer.

B. 12 bars in bars size 30 mm ultrasonic inspection (UT) of internal defects. The quality group is established by agreement between manufacturer and customer in accordance with GOST 21120.

B. 13 long steel in the annealed condition (ON) or after the high holiday (VO). While the mechanical properties are not regulated, but are monitored and results recorded in the document about quality.

14 B. the Manufacture of rolled steel grades listed in tables A. 1 and A. 2, strength classes and sizes than what is shown in them, while ensuring the desired mechanical properties in the tensile test and impact strength.

Annex b (mandatory). Requirements for all pre-peeled rolled when you remove the burrs and crushed all

The App
(required)

B. 1 Terms and definitions

B. 1.1 «Cup» (figure B. 1): the Defect at the end of the reign of bars in the shape of a Cup formed in the edit due to shear deformation, and also due to the rolling of the Burr (see definition in GOST 21014), resulting in the cutting of rolled steel, depending on the thickness (diameter) of the rental, may result in the surface layer or to continue until the rental center.

B. 1.2 the remains of «cups» (figures V. 2, V. 3): the Defect at the end of the rent remaining after removal of a facet or trimming the main part of the «calyx».

Figure B. 1. Cup

Figure B. 1

Figures V. 2, V. 3. The remains of «cups»

Figure B. 2

Figure B. 3

Appendix d (mandatory). Examples of symbols

Appendix D
(required)

Bicycle shaped hot rolled I-beam, conventional precision rolling () of random length (ND), number 30 GOST 8239−89, grade 345, no heat treatment:

.

Hire steel hot-rolled shapes, channels, length (MD), 20 with parallel flange edges (P) according to GOST 8240−97, grade 315, without heat treatment:

.

Bicycle shaped hot rolled angle, normal accuracy of rolling (In), dimensions 63x40x4 mm according to GOST 8510−86, grade 345, no heat treatment:

.

Bright bars, round bars, peeled (MBT), the usual accuracy of rolling (B1), class of curvature IV, multiple gauge length (CD) with a diameter of 50 mm according to GOST 2590−2006, strength class 390, with surface quality group 3ГП according to GOST 535−2005, chamfered on both sides (F2), with ultrasonic testing of internal defects (ultrasonic testing), after thermal hardening (TU):

.

Black bars, square bars, the usual accuracy of rolling (B1), class III curvature of random length (ND), with a side of 50 mm square according to GOST 2591−2006, grade 325, category 2, without heat treatment:

.

Bright bars, round, in coils (NMD), the usual accuracy of rolling (B1), with a diameter of 10 mm according to GOST 2590−2006, grade 345, category 9, with surface quality group 2ГП according to GOST 535−2005, without heat treatment:

.

Hire plate mill, high precision rolling (A), high flatness (PV), with cut edges (O), size 8x1100x5000 mm according to GOST 19903−74, strength class 390, category 3, of steel 10KHSND with a mass fraction of sulfur in accordance with 5.2.2, normalized (N):

subject to 5.2.2.

Rolled plate, the normal flatness (MON), mill edge (BUT), size 16x1200x6000 mm according to GOST 19903−74, grade 325, category 12, of steel grade 16GS-1, with a guarantee of weldability (TOS), without heat treatment:

.

The same restriction minus tolerances for the thickness in accordance with 5.2.4:

subject to 5.2.4.

Bright bars, round, bars, the usual accuracy of rolling (B1), class IV curvature, length (MD), with a diameter of 20 mm according to GOST 2590−2006, quality grade S275J0, with surface quality group 2ГП according to GOST 535−2005, without heat treatment, with additional requirements in accordance with B. 1 of Annex B:

taking into account B. 1.