GOST 535-2005

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  ГОСТ 535-2005

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

GOST 535−2005
Group B22

INTERSTATE STANDARD

THE BAR AND SHAPED SECTIONS OF QUALITY CARBON STEEL

General specifications

Common quality carbon steel bar and shaped sections. General specifications

ISS 77.140.50
OKP 09 3000

Date of introduction 2008−07−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−97* «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. The procedure of development, adoption, application, renewal and cancellation"
________________
* On the territory of the Russian Federation GOST 1.2−2009. — Note the manufacturer’s database.

Data on standard

1 DEVELOPED by the research Institute «Ukrniimet» Ukrainian state scientific and technical center «Energostal», Interstate technical Committee for standardization MTK 327 «bars, shapes and sections"

2 SUBMITTED to the State Committee of Ukraine for technical regulation and consumer policy

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol No. 28 dated December 9, 2005)

The standard was accepted by voting:

Short name of the country on MK (ISO 3166) 004−97	Country code by MK (ISO 3166) 004−97	Abbreviated name of the national authority for standardization
Azerbaijan	AZ	Azstandart
Armenia	AM	Intergeneratsiya
Belarus	BY	Gosstandart Of The Republic Of Belarus
Kazakhstan	KZ	Gosstandart Of The Republic Of Kazakhstan
Kyrgyzstan	KG	Kyrgyzstandard
Moldova	MD	Moldova-Standard
Russian Federation	EN	Federal Agency on technical regulation and Metrology
Tajikistan	TJ	Tajikstandart
Uzbekistan	UZ	Uzstandard
Ukraine	UA	Derzhspozhyvstandart Of Ukraine

4 Annex B of this standard complies with international standards:

— ISO 630:1995 «Structural steel. The plates, broadband, section bars and shaped profiles» (ISO 630:1995 «Structural steels — Plates, wide flats, bars, sections and profiles», NEQ);

— ISO 1052:1982, «Steel General purpose» (ISO 1052:1982 «Steels for general engineering purposes», NEQ) in terms of requirements for mechanical and technological properties rental

5* the Order of the Federal Agency for technical regulation and Metrology dated 20 July 2007 N 186-St inter-state standard GOST 535−2005 introduced as a national standard of the Russian Federation from January 1, 2008
____________________
* By order of the Federal Agency for technical regulation and Metrology of March 7, 2008 N 32 St the deadline for the introduction of state standard GOST 535−2005 postponed to July 1, 2008.

6 REPLACE GOST 535−88

7 EDITION (September 2009) — amended (6−2008)


Information about introduction in action (termination) of this standard is published in the index «National standards».

Information about the amendments to this standard is published in the index «National standards», and the text changes — in the information sign «National standards». In case of revision or cancellation of this standard the appropriate information will be published in the information index «National standards»

1 Scope

This standard applies to hot-rolled shapes and rolled sections in General and special assignments of carbon steel of ordinary quality.

2 Normative references

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

GOST 103−2006 hot-rolled steel Strip. Assortment

GOST 162−90 Gauges. Specifications

GOST 166−89 (ISO 3599−76) Calipers. Specifications

GOST 380−2005 carbon Steel of ordinary quality. Brand

GOST 427−75 Rulers measuring metal. Specifications

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

GOST 2590−2006 rolled steel hot rolled round. Assortment

GOST 2591−2006 hot-rolled steel square. Assortment

GOST 2879−2006 hot-rolled hexagonal steel. Assortment

GOST 3749−77 the Angular span of 90°. Specifications

GOST 4781−85 steel sections hot rolled sheet piling. Specifications

GOST 5378−88 Protractors with Vernier. Specifications

GOST 6507−90 Micrometers. Specifications

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

GOST 7502−98 metallic measuring tape. 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

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

GOST 8510−86 angle steel hot rolled angle. Assortment

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

GOST 14019−2003 (ISO 7438:85) Materials metal. Method of bend test

GOST 17152−89 (ISO 7129−82) Profiles hot-rolled steel for knives earthmoving machinery. General specifications

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

GOST 18662−83 SVP hot-rolled section for mine timbering. Assortment

GOST 18895−97 Steel. Method of photoelectric spectral analysis

GOST 19240−73 Rails for ground and suspended tracks. Assortment

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

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

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

GOST 26877−91 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

Note — When using this standard appropriate to test the effect of reference standards for the sign «National standards» drawn up as of January 1 of the current year and related information signs, published in 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 Classifications. Basic parameters and dimensions

3.1 the hire is divided into shapes.

Varietal refers to the rental at which the tangent to any point on the contour of the cross section this section traverses (rolled round, square, hexagonal, flat).

To shapes include the rental, which is tangent at least at one point of the contour of the cross section this section traverses (I-beam, channels, angles and special profiles).

3.2 depending on the surface quality rental divided into groups:

1ГП — for use without surface treatment;

2ГП for hot forming;

3ГП for cold mechanical processing by cutting.

The group indicated in the order.

Group if it is not specified in the order, established by the manufacturer.

Shapes produce only groups 1ГП.

3.3 In form, dimensions and limit deviations of the hire must meet the requirements:

GOST 103 for the strip;

GOST 2590 — round;

GOST 2591 — square;

GOST 2879 — hex;

GOST 4781 — sheet piling;

GOST 8239 — for I-beams;

GOST 8240 — channels;

GOST 8509 — for the corner angle;

GOST 8510 — for the corner angle;

GOST 17152 — for profiles knives earthmoving machinery;

GOST 18662 — hot-rolled profiles SVP for mine timbering;

GOST 19240 — rails for ground and suspended tracks;

GOST 19425 — for beams and channels for special purposes.

GOST 21026 — for channels with curved shelf for trolleys;

GOST 26020 — for I-beams with parallel flanges and other normative documents approved in the prescribed manner.

3.4 Bicycle made from steel grades: St0, St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, St3kp, St3ps, st3sp, St3gps, St3gsp, St4kp, St4ps, St4sp, St5ps, St5sp, St5gps, St6ps, St6sp according to GOST 380.

3.4.1-rolled profiles SVP for mine timbering according to GOST 18662 made of steel grades and St5ps St5sp.

3.5 depending on the normalized indicators, the rentals are divided into categories: 1, 2, 3, 4, 5, 6, 7.

The category indicated in the order.

If it is not specified in the order, defined by the manufacturer.

3.6 allowed to manufacture rolled steel grades: E 185 (Fe-310), E 235 (Fe 360), E 275 (Fe 430), E 355 (Fe 510), Fe 490 Fe 590 Fe 690 according to GOST 380 (Appendix B).

3.7 Scheme of the legend of the rent is given in Appendix A.

4 General technical requirements

4.1 rental are made in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

4.2 Chemical composition the steel must conform to GOST 380.

4.3 rental are made in hot-rolled condition. To ensure the required properties can be applied heat treatment.

4.4 At the request of the consumer rental manufactured with the guarantee of weldability («SV»). Weldability is ensured by the steel chemical composition and manufacturing technology of hire.

Carbon equivalent () must not exceed 0,45%.

4.5 Standardized categories of rental listed in table 1.


Table 1

Kate- goriya	Steel grade	Chemistry- cal composition	Times ing resi- statement	Pre- Affairs current honor	Take tive. - use	Bending in cold state anii	Toughness
KCU			KCV
When tempera- round, °C		After mechanical IC aging	When the tempera- round, °C
+20	-20	+20	-20
1	St0	-	+	-	+	-	-	-	-	-	-
St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, St3kp, St3ps, St3sp, St4kp, St4ps, St4sp, St5ps, St5sp	-	+	+	+	+	-	-	-	-	-
St6ps, St6sp	-	+	+	+	-	-	-	-	-	-
2	St3kp, St3ps, St3sp, St3gps, St4kp, St4ps, St4sp, St5ps, St5sp, St5gps	+	+	+	+	+	-	-	-	-	-
3	St3ps, St3sp, St3gps, St4ps, St4sp	+	+	+	+	+	+	-	-	-	-
4	St3ps, St3sp, St3gps, St3gsp	+	+	+	+	+	-	+	-	-	-
5	St3ps, St3sp, St3gps, St3gsp	+	+	+	+	+	-	+	+	-	-
6	St3ps, St3sp, St3gps, St3gsp	+	+	+	+	+	-	-	-	+	-
7	St3ps, St3sp, St3gps, St3gsp	+	+	+	+	+	-	-	-	-	+
Notes 1 the + Sign indicates that the indicator is normalized, the sign «-" means that the indicator is not standardized. 2 Chemical composition of steel on plavonia analysis or in ready rental — in accordance with the order.

4.6 Mechanical properties of rolled under tension, and test conditions in the cold bending shall comply with the standards listed in table 2.


Table 2

Steel grade	Tensile strength, N/mm(kgf/mm), rolled thickness, mm		Yield strength , N/mm(kgf/mm), rolled thickness, mm					Elongation , %, for rental thicknesses in mm			Bending to Paral- lennosti sides (the specimen thickness, the diameter of the mandrel), for rental thicknesses in mm
to 10 incl.	St. 10 to 20 incl.	St. 20 to 40 incl.	St. 40 to 100 incl.	over 100	up to 20 incl.	St. 20 to 40 incl.	over 40
to 10 incl.	St. 10	not less than								up to 20 incl.	St. 20
St0	Not less than 300 (31)		-	-	-	-	-	18	18	15	-	-
St1kp	305−390 (31−40)		195 (20)	195 (20)	185 (19)	175 (18)	165 (17)	35	34	32
St1ps	315−410 (32−42)		205 (21)	205 (21)	195 (20)	185 (19)	175 (18)	34	33	31
St1sp
St2kp	325−410 (33−42)		215 (22)	215 (22)	205 (21)	195 (20)	185 (19)	33	32	30
St2ps	335−430 (34−44)		225 (23)	225 (23)	215 (22)	205 (21)	195 (20)	32	31	29
St2sp
St3kp	360−460 (37−47)		235 (24)	235 (24)	225 (23)	215 (22)	195 (20)	27	26	24
St3ps	370−480 (38−49)		245 (25)	245 (25)	235 (24)	225 (23)	205 (21)	26	25	23
St3sp	380−490 (39−50)	370−480 (38−49)	255 (26)	245 (25)	235 (24)	225 (23)	205 (21)	26	25	23
St3gps	370−490 (38−50)		-	245 (25)	235 (24)	225 (23)	205 (21)	26	25	23
St3gsp	390−570 (40−58)		-	-	245 (25)	-	-	-	24	-	-
St4kp	400−510 (41−52)		255 (26)	255 (26)	245 (25)	235 (24)	225 (23)	25	24	22
St4ps	410−530 (42−54)		265 (27)	265 (27)	255 (26)	245 (25)	235 (24)	24	23	21
St4sp
St5ps	490−630 (50−64)		285 (29)	285 (29)	275 (28)	265 (27)	255 (26)	20	19	17
St5sp	490−630 (50−64)		295 (30)	285 (29)	275 (28)	265 (27)	255 (26)	20	19	17
St5gps	450−590 (46−60)		-	285 (29)	275 (28)	265 (27)	255 (26)	20	19	17
St6ps	At least 590 (60)		315 (32)	315 (32)	305 (31)	295 (30)	295 (30)	15	14	12	-	-
St6sp
Notes 1 By agreement with the consumer allowed: — reduction of yield stress of 10 N/mm(1 kgf/mm) for sections thicker than 20 mm; — reduction of relative elongation of 1% (abs.) for sections of all thicknesses. 2 is allowed to exceed the upper limit of the interim resistance of 49.0 N/mm(5 kgf/mm), and with the agreement of the consumer without restricting the upper limit of the strength under the condition of the remaining provisions. At the request of the consumer exceeding the upper limit of the strength is not allowed.

4.7 Impact strength of the rental must meet the standards set out in table 3.


Table 3

Steel grade	The thickness of rolling, mm	Impact strength, j/cm(kgf·m/cm), not less
KCU				KCV
Sample type according to GOST 9454	At a temperature of, °C		After fur- technical aging	Sample type according to GOST 9454	At a temperature of, °C
+20	-20	+20	-20
St3ps	From 3.0 to 5.0 incl.	-	-	49 (5)	49 (5)	-	-	9,8 (1,0)
St3sp	SV. 5.0 to 10.0 incl.	2,3	108 (11)	49 (5)	49 (5)	12, 13	34 (3,5)	-
St3gps	SV. Of 10.0 to 26.0 incl.	1	98 (10)	29 (3)	29 (3)	11	34 (3,5)	-
St3gsp	SV. 26.0 to 40.0 incl.	1	88 (9)	-	-	-	-	-
St4ps St4sp	From 3.0 to 5.0 incl.	-	-	-	-	-	-	-
SV. 5.0 to 10.0 incl.	3	98 (10)	-	-	13	-	-
SV. Of 10.0 to 26.0 incl.	1	88 (9)	-	-	11	-	-
SV. 26.0 to 40.0 incl.	1	69 (7)	-	-	-	-	-
Notes 1 the Sign «-" means that the indicator is not standardized. 2 Determination of impact toughness of rolled of circular cross-section is carried out starting from diameter 12 mm, square, starting from the sides of the square 11 mm. 3 allowed the reduction of impact strength on the same sample at 30%, and the average value should be below the limits specified in this table. 4 Impact toughness KCV is determined with plate thickness of up to 20 mm.

4.8 the separation of the hire is not allowed.

4.9 On the surface of the rental group 1ГП allowed without Stripping some smoothed out bubbles and impurities, rabiza, prints, risks, not deducing the size of the profile beyond the negative deviations. Other types of defects should be removed with gentle cleansing or clearing, if it does not take the size of the profile beyond the negative deviations.

4.10 On the surface of the rental group 2ГП allowed without Stripping some smoothed out bubbles and impurities, rabiza, prints, risks, not deducing the size of the profile beyond the negative deviations. Other types of defects should be removed with gentle cleansing or cutting, the depth of which shall not exceed:

— the sum of limit deviations of the diameter or thickness for rods with a size of 40 mm or less;

— 5% of diameter or thickness for bars larger than 40 mm to 140 mm inclusive;

— 8% of the diameter or thickness for bars larger than 140 mm.

The depth of Stripping or cutting is considered to be of the minimum size of rental.

The cross section of the rental, the size (diameter or thickness) of 140 mm and over are allowed no more than two sweeps, the maximum depth that must not be positioned on the same axis.

4.11 On the surface of the rental group 3ГП allowed without Stripping defects, the depth of which does not exceed:

— the negative limit deviation for diameter or thickness less than 100 mm;

— total limit deviation for diameter or thickness of 100 mm or more.

The depth of defect is calculated from the nominal size.

4.12 Depth, Stripping or punching defects on the surface of the rental that do not have a standardized limit deviations should not exceed 10% of the thickness of the test element profile.

4.13 Defects removed with gentle cleansing or clearing a width of not less than five times the depth.

4.14 rental should be circumcised.

4.14.1 When cutting rolled in a cold state on the surface of the cut (end) allowed waviness and chips, not deducing the length of the profile for the nominal size and tolerances for length.

4.14.2 Cosinus cutting of structural shapes shall not display the length of the rental for the nominal size and tolerances for length. The height of the Burr when cutting with scissors must not exceed: 1.0 mm — thickness structural shapes to 5.0 mm inclusive, and 1.5 mm at thickness more than 5.0 to 10 mm, inclusive, thickness 0,15 — thickness sections over 10 mm.

4.14.3 Cosine of the cut rolled steel with a diameter (thickness) up to 80 mm inclusive not normalized.

Slant cut rolled steel with a diameter (thickness) of more than 80 mm should not exceed 0.1 of the diameter (thickness), and at the request of the consumer — 5.0 mm.

The height of the burrs when cutting long steel scissors should not exceed 0.1 of the diameter (thickness).

4.14.4 the height of the burrs when cutting shapes rolled and saws shall not exceed 3 mm.

4.14.5 At the request of the consumer burrs must be removed.

4.14.6 When cutting long products and structural shapes with scissors prints allowed knives to a depth of 0.25 of the diameter (thickness) and strap ends rolled.

4.15 rental of diameter (side of the square width) to 40 mm inclusive of random length is allowed to produce with mill ends.

By agreement between manufacturer and consumer hire diameter (side of a square, a width) of more than 40 mm inclusive manufactured with uncut ends.

4.16 allowed to manufacture rolled steel grades E 185 (Fe-310), E 235 (Fe 360), E 275 (Fe 430), E 355 (Fe 510), Fe 490 Fe 590 Fe 690 with the requirements of ISO 630 [1] and ISO 1052 [2], is given in Appendix B.

5 Marking

5.1 Marking rolled — GOST 7566.

5.2 By agreement between the consumer and the manufacturer of the rolled color-coded in accordance with GOST 380.

6 Pack

6.1 Packing rolled — GOST 7566.

7 Rules of transportation and storage

7.1 Transportation and storage — by GOST 7566.

8 Rules of acceptance

8.1 the hire taking parties. The party should consist of the rental of the same size and the same melting-ladle.

For rental of steel grade St0 number of heats in the party is not limited.

8.1.1 In the party there can be multiple heats (combined party), the party must consist of the rental of the same size (diameter, thickness, or number) and one grade of steel. Chemical composition, tensile strength, yield strength, elongation, toughness, cold bending and conformity to a given category, the hire of this party is determined by melting, with the lowest value of carbon equivalent ().

The mass of the party — not more than 200

The weight of the batch is rolled from billets, obtained on machines continuous casting method «melting in the melting of» not more than 500 t

8.2 Batch must be accompanied by a document of quality according to GOST 7566 with additions:

— index SB and the value of the carbon equivalent for the national team of the party;

— index of the SV — in the supply of rental with ensuring weldability;

— index (*) for bucket samples, or (S) for finished rolled products — when specifying chemical composition.

8.3 To check the quality of the rolled products chemical composition, mechanical and technological properties are selected from the party:

— for chemical analysis — one sample from melting ladle-or one sample from finished steel of each melt-bucket;

for the tensile test and cold bending one rod, a coil, strip or profile;

for testing the impact strength to determine fracture toughness — two rods, coils, strips, or profile.

8.4 When rolling on the bottoms of different thicknesses (diameters, the sides of the square) rods, coils, strips or profiles for mechanical testing taken from rental of minimum and maximum thickness.

8.5 To control the masses rolled in from the party take one rod, a coil, strip or profile.

8.6 To control the shape, size, rolled and surface quality from party select 10% bars, rods, coils, strips, or profile, but not less than 5 pieces.

8.7 Chemical analysis of the finished steel and bend test in cold state is allowed not to perform, set standards, provide technology.

8.8 Upon receipt of unsatisfactory results of the inspection at least one indicator of a re-examination is carried out in accordance with GOST 7566.

9 control Methods

9.1 sampling Methods to determine the chemical composition of the steel according to GOST 7565.

9.2 Chemical analysis according to GOST 17745, GOST 18895, GOST 22536.0 to GOST 22536.11,GOST 27809, GOST 28033 or other methods approved in the established order and to ensure the necessary accuracy of the analysis.

In case of disagreement between the manufacturer and the customer used the methods of analysis specified in this standard.

9.3 Carbon equivalent is calculated by the formula

, (1)

where ,  — mass fraction of carbon and manganese on plavonia analysis, %.

9.4 Methods of sampling for mechanical and technological tests — according to GOST 7564.

9.4.1 each selected for control rods, coils, strips, or profile selected:

— for tensile tests and bending — one sample;

for testing the impact strength and determination of the impact resistance after mechanical aging — two sample.

9.5 tensile Test is carried out according to GOST 1497.

9.6 the bend Test is carried out according to GOST 14019.

9.7 Test for impact strength is carried out according to GOST 9454.

Test the impact strength of the rolled thickness of 5 mm or less, carried out on samples with a thickness equal to the thickness of the rental.

9.8 determination of the impact resistance after mechanical aging is carried out according to GOST 7268.

9.9 in the control of mechanical properties allowed the use of statistical and non-destructive methods of control according to the normative documents on control methods of steel products, passed the state registration.

In arbitration cases, subject to periodic quality checks used methods of control under this standard.

9.10 in the manufacture of steel hire one of melting different thickness (diameter, side of the square) samples for mechanical testing are taken from the rentals of minimum and maximum thickness (diameter, side of a square) of each group size:

to	10 mm	incl.;
St. 10	up to 20 mm	«
«20	«40 mm	«
«40	«100 mm	«
»	100 mm

The results of the tests apply to all group sizes.

In the manufacture of structural shapes of steel one melting samples for mechanical testing are taken from each type or profile number.

9.11 surface Quality hire check inspection without the use of magnifying devices.

A bundle of rent checks visual inspection of the ends and edges rolled.

9.12 the Geometric dimensions and the shape of the profile is tested according to GOST 26877 by means of measuring instruments according to the GOST 162, 166 GOST, GOST 427, GOST 3749, 5378 GOST, GOST 6507, GOST 7502 or instruments, certified in the prescribed manner.

9.13 control the mass of rent is carried out by weighing one sample unit not less than 0.3 m weight of 1 m length and 100 kg, sample length less than 0.3 m with a mass of 1 m lengths of 100 kg and more.

Annex a (mandatory). Examples of symbols

Appendix A
(required)

Scheme legend rental

Examples of symbols:

The hot rolled round the usual accuracy of rolling (In), class II curvature, with a diameter of 30 mm according to GOST 2590−88, steel stamps St5ps, category 1 group 1ГП:

Area hot rolled angle high precision rolling (A), the size of 50х50х3 mm according to GOST 8509−93, from steel grade st3sp, category 2:

I-beam hot rolled high precision rolling (B), No. 30 GOST 8239−89, of steel grade St3ps, category 4:

T-rail according to GOST 19240−73, of steel grade St5sp, category 1:

I-beam with parallel flange edges, the number 40B2 according to GOST 26020−83 from steel grade st3sp, category 5:

Hire steel hot-rolled corner steel angle high precision rolling (A), the size of 63х40х4 mm according to GOST 8510−86 from steel grade st3sp, category 4, with a guarantee of weldability (SV):

(Amendment).

Appendix B (recommended). Technical requirements for the rental in accordance with ISO 630:1995, ISO 1052:1982

Appendix B
(recommended)

B. 1 Mechanical properties of rolled tensile and impact work must conform to the standards given in table B. 1


Table B. 1

Steel grade	Kate- goriya	Temporary resistance tion , N/mm	The upper yield strength , N/mmfor thicknesses in mm							Elongation , % thickness, mm					Work strike (neck incision) KV, j
up to 16 incl.	St. 16 to 40 incl.	over 40 to 63 incl.	St. 63 to 80 incl.	over 80 to 100 incl.	over 100 to 150 incl.	St 150 to 200 incl.	to 40 incl.	over 40 to 63 incl.	St. 63 100 incl.	SV .100 to 150 incl.	St 150 to 200 incl.	at a temperature of, °C
+20	0	-20
not less than
E 185 (Fe-310)	-	300−540	185	175	-	-	-	-	-	18	-	-	-	-	-	-	-
E 235 (Fe 360)	And	340−470	235	225	215	215	215	195	185	26	25	24	22	21	-	-	-
In	340−470	235	225	-	-	-	-	-	26	-	-	-	-	-	-	-
B NF	340−470	235	225	215	215	215	195	185	26	25	24	22	21	27	-	-
With	340−470	235	225	215	215	215	195	185	26	25	24	22	21	-	27	-
D	340−470	235	225	215	215	215	195	185	26	25	24	22	21	-	-	27
E 275 (Fe 430)	And	410−540	275	265	255	245	235	225	215	22	21	20	18	17	-	-	-
In	410−540	275	265	255	245	235	225	215	22	21	20	18	17	27	-	-
With	410−540	275	265	255	245	235	225	215	22	21	20	18	17	-	27	-
D	410−540	275	265	255	245	235	225	215	22	21	20	18	17	-	-	27
E 355 (Fe 510)	With	490−640	355	345	335	325	315	295	285	22	21	20	18	17	-	27	-
D	490−640	355	345	335	325	315	295	285	22	21	20	18	17	-	-	27
Fe 490	-	490−640	295	285	275	-	-	-	-	-	-	-	-	-	-	-	-
Fe 590	-	590−740	335	325	315	-	-	-	-	-	-	-	-	-	-	-	-
Fe 690	-	690−840	365	355	345	-	-	-	-	-	-	-	-	-	-	-	-
Notes 1 rental of steel grade E 185 (310 Fe) and E 235 (Fe 360) category To produce a thickness of less than 25 mm. 2 For rental of steel grades E 235 (Fe 360), E 275 (Fe 430), E 355 (Fe 510) with a thickness over 100 mm allowed the reduction of the lower value of the time resistance 20 N/mm. 3 Work impact is calculated as the average of testing three samples, in this work the impact of each sample should be at least 70% of the established norm.

The mechanical characteristics of the products with thickness more than 200 mm is determined by agreement between the manufacturer and the consumer.

B. 2 Surface rental should be smooth and have no surface defects that affect the further processing of the rental or its intended use.

B. 3 Separate defects can be removed by the manufacturer by Stripping under condition that the thickness should not go beyond the negative deviations, which are determined in accordance with international standards on bars and shapes, in the absence of extreme deviations in international standards, the thickness of the rentals should not be reduced locally by more than 6% of the nominal size.

B. 4 Unless otherwise noted, the defects of a depth greater than the maximum deviations in thickness of the rolled can be welded and then the weld metal is subject to the following restrictions:

a) reducing the thickness of the rolled result from the removal of the defect is not due to welding to exceed 2% of the nominal thickness in one cross section;

b) all welding operations shall be performed by skilled welders using welding electrodes, respective Marche correct material, and then welding process should be investigated and approved.

B. 5 rental take bottoms.

B. 6 the Volume control bars for the tests shall not be less than 50 tons is taken from each heat, the weight of which shall not be less than 50 tons.

B. 7 controlled From each batch and thickness range in accordance with table B. 1 is carried out:

— one tensile test;

— set of three impact tests at a temperature of 0 °C for the grade category and a set of three tests at a temperature of minus 20 °C for the grade of D

and, if specified in the order,

— set of three impact tests at a temperature of 20 °C for the grade category B.