GOST 1577-93

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  ГОСТ 1577-93

GOST 1577−93 rolled sheets and wide strips of structural quality steel. Technical specifications (with Amendments)

GOST 1577−93
Group B33

INTERSTATE STANDARD

ROLLED SHEETS AND WIDE STRIPS OF STRUCTURAL QUALITY STEEL

Specifications

Rolled sheets and wide strips of structural quality steel. Specifications

ISS 77.140.50*
OKP 09 8100
_______________
* In the index «National standards» 2010 ACS 77.140.20. -
Note the manufacturer’s database.

Date of introduction 1997−01−01

Preface

1 DEVELOPED by the Center of standardization and certification of steel products Technical Committee for standardization TC 120 «Cast iron, steel, rolled"

INTRODUCED by Gosstandart of the Russian Federation

2 ADOPTED by the Interstate Council for standardization, Metrology and certification on 15 April 1994 (report of the Technical Secretariat N 2)

The adoption voted

The name of the state	The name of the national authority standardization
The Republic Of Armenia	Armastajad
The Republic Of Belarus	Gosstandart Of The Republic Of Belarus
The Republic Of Kazakhstan	Gosstandart Of The Republic Of Kazakhstan
The Kyrgyz Republic	Kyrgyzstandard
The Republic Of Moldova	Moldovastandart
Russian Federation	Gosstandart Of Russia
Turkmenistan	The MDCSU «Turkmenstandartlary»
Ukraine	Gosstandart Of Ukraine

3 Decree of the Russian Federation Committee on standardization, Metrology and certification dated March 19, 1996 N 180 interstate standard GOST 1577−93 introduced directly as state standard of the Russian Federation from January 1, 1997

4 REPLACE GOST 1577−81

5 EDITION with Amendments (ICS 4−99, 1−2000)


AMENDED, published in IMS No. 4, 2007

An amendment made by the manufacturer of the database

1 Scope of

This standard applies to hot rolled plate and structural quality of broadband non-alloy and alloy steel.

2 Normative references

The present standard features references to the following standards:

GOST 8.001−80 State system for ensuring the uniformity of measurements. The organization and order of carrying out state testing of measuring instruments

_______________
* On the territory of the Russian Federation to apply the Procedure of testing standard specimens or measurement facilities for the purposes of type approval, the Procedure for approval of type of standard samples or type of measuring instruments, the Procedure for issuing certificates on approval of type of standard samples or type of measuring instruments, establishment and changing of the validity period of these certificates and the interval between verifications of measuring instruments, Requirements to the signs of type approval for standard samples or type of measuring instruments and their application, approved by order of Minpromtorg of Russia of 30 November 2009 # 1081, here and hereafter. — Note the manufacturer’s database.

GOST 8.326−89* State system for ensuring the uniformity of measurements. Metrological certification of measuring instruments
_______________
* On the territory of the Russian Federation to apply the Procedure of testing standard specimens or measurement facilities for the purposes of type approval, the Procedure for approval of type of standard samples or type of measuring instruments, the Procedure for issuing certificates on approval of type of standard samples or type of measuring instruments, establishment and changing of the validity period of these certificates and the interval between verifications of measuring instruments, Requirements to the signs of type approval for standard samples or type of measuring instruments and their application, approved by order of Minpromtorg of Russia of 30 November 2009 # 1081, here and hereafter. — Note the manufacturer’s database.

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

GOST 103−76* hot-rolled steel Strip. Assortment
_______________
* On the territory of the Russian Federation GOST 103−2006. — Note the manufacturer’s database.

GOST 535−88* bar and shaped sections of quality carbon steel. General specifications
_______________
* On the territory of the Russian Federation GOST 535−2005. — Note the manufacturer’s database.

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

GOST 4543−71 rolled alloy structural steel. Specifications

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, and storage transportirovka

GOST 9012−59 (ISO 410−82, ISO 6506−81) Metals. Method of measuring hardness Brinell hardness

GOST 9045−93 cold-rolled thin sheets of low carbon quality steel for cold forming. Specifications

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

GOST 10243−75 Steel. Test method and evaluation of the macrostructure

GOST 12344−88* Steel alloyed and high alloy. Methods for determination of carbon
_______________
* On the territory of the Russian Federation GOST 12344−2003, here and hereafter. — Note the manufacturer’s database.

GOST 12345−2001 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 12351−81* Steel alloyed and high alloy. Methods for determination of vanadium
_______________
* On the territory of the Russian Federation GOST 12351−2003. — Note the manufacturer’s database.

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

GOST 12354−81 Steel alloyed and high alloy. Methods for determination of molybdenum

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

GOST 12360−82 Steel alloyed and high alloy. Methods of boron determination

GOST 14019−80* (ISO 7438−85) Metals. Methods of bend test
_______________
* On the territory of the Russian Federation GOST 14019−2003, here and hereafter. — Note the manufacturer’s database.

GOST 14192−96 Marking of cargo

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

GOST 14959−79 rolled spring carbon and alloy steel. Specifications

GOST 15846−79* Products that are sent to the far North and remote areas. Packing, marking, transportation and storage
_______________
* On the territory of the Russian Federation GOST 15846−2002, here and hereafter. — Note the manufacturer’s database.

GOST 19903−74 hot-rolled steel sheets. Assortment

GOST 22235−76 freight Wagons main Railways of 1520 mm. General requirements for ensuring safety during loading-unloading and shunting works

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 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 22536.8−88 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 22727−88 the rolled sheet. Methods of ultrasonic testing

GOST 26877−91 metal Products. Methods of measuring form deviations of

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

3 Main parameters and dimensions

3.1 rental are made of steel grades 08KP, 08ps, 08, 10kp, 10ps, 10, 15kp, 15ps, 15, 20kp, 20ps, 20, 25, 30, 35, 40, 45, 50, 55, 60 according to GOST 1050; 08JU according to GOST 9045; 15G, 20G, 30G, 40G, 50G, 10G2, 35G2, 20S, 30S, 38KHA, 40H, 45KH according to GOST 4543, 65, 70, 60G, 65G, 70G — according to GOST 14959.

Note — steel grade 08JU produce sheet products.

3.2 rental manufactured thickness:

4 — 160 mm — sheet;

4 — 12 mm — roller;

6 — 60 mm — broadband.

3.3 requirements for the assortment of rent must comply with:

GOST 19903 — for sheet and roll;

GOST 82 — for broadband.

3.4 the legend of the characteristics of the rental during the ordering given in table 1.

Table 1 - the legend of the characteristics of the rental

Feature rental	Paragraph number of this standard	The symbol features
The precision of rolling thickness of steel plate:
— increased	4.2.1	A
— normal	4.1.1	B
Length broadband rental:
— random	4.1.2	ND
— dimensional	4.2.2	MD
— dimensional	4.2.2	CD
View of the flatness of the rental:
— normal	4.1.1	PN
— improved	4.2.1, 4.2.2	PU
— high	4.2.1	PV
— very high	4.2.1	AT
Leg curvature broadband rental classes:
And	4.2.2	And
— B	4.1.2	B
Condition of edges:
— timber	4.1.1, 4.1.2	BUT
— edged	4.2.3, 4.3.3	On
The rolled delivery condition:
— without heat treatment	4.1.7, 4.2.8, 4.2.11	Not indicated
— heat treated	4.2.6, 4.2.7, 4.3.8	IT
The hardness of the products with thickness up to 80 mm incl. in the delivery state:
without heat treatment, after controlled rolling, heat-treated	4.1.7 a; 4.2.7, table 2	TV1
without heat treatment and with continuous rolling mills with the standards for annealed or vysokoopasnye rental	4.2.8, table 2	TV2
Control the hardness of the products with thickness over 80 mm	4.3.9	TV3
Mechanical properties:
— rolled with thickness up to 80 mm incl. in the delivery condition normalized or workpieces	4.2.9, table 3	M1
— rolled plates with thickness up to 80 mm cyl., supplied without heat treatment or with mills continuous rolling, the rules for annealed or vysokoopasnye rental	4.2.10, table 3	M2
— in the normalized condition for the workpiece size determined by the consumer	4.3.10, table 5	M3
after quenching with vacation on the workpiece size determined by the consumer	4.3.11, table 6	M4
Normalized toughness at a temperature of minus 20 °C for products with thickness up to 80 mm incl.	4.2.11	КУВ1
Control of impact strength at a temperature of minus 20 C, minus 40 °C and minus 50 °C for rental of steel calm brands	4.3.12	КУВ2
The bend test in cold state	4.3.12	KI
Normalized scores in the macrostructure of rolled of a thickness exceeding 10 mm	4.3.14	CCM
Guarantee decarburization no more than 2% on the side	4.3.7	1C
Descaling of	4.3.15	UO
Deburring obtained when cutting plate and cutting the broadband rental to length	4.3.17	UZ
Ultrasonic testing of metal	4.3.13	1УЗК, 2УЗК, 3УЗК
The form of filling the document as stating:
— compliance with the rental of this standard	5.3	DK1
all types of the tests	5.3	ДК2
Guarantee of weldability	4.3.16	GS

Examples of symbols rolled are given in Appendix 1.

4 Technical requirements

4.1 characteristics of basic performance

4.1.1 hot-rolled without heat treatment or after controlled rolling, normal accuracy in thickness, normal flatness, mill edge.

4.1.2 rental broadband without heat treatment random length, Rebrovo curvature class B, normal flatness, mill edge.

4.1.3 Chemical composition of the steel in the screener sample and the permissible deviations in the finished hire must comply with GOST 1050, GOST 4543, GOST 9045, GOST 14959.

4.1.4 surface Quality and requirements for rolled edges should correspond to GOST 14637.

4.1.5 Stratification in rental is not allowed.

4.1.6 In the macrostructure of hire should not be visible without using the magnifying devices, bundles, clusters, rolled, bubbles, inclusions and placenow.

4.1.7 Hardness of products with thickness up to 80 mm incl. without heat treatment or after controlled rolling needs to conform to the standards specified in table.2.

Table 2 - Hardness of rental

Dimensions are in millimeters

Mark steel	Without heat treatment or after controlled rolling		Normalized		Annealed or vysokoopasnye
	The diameter of the print, not less	Hardness HB no more	The diameter of the print, not less	Hardness HB no more	The diameter of the print, not less	Hardness HB no more
08KP, 08ps, 08, 08JU	+	+	+	+	5,2	131
10kp, 10ps, 10					5,1	137
15kp, 15ps, 15					5,0	143
20kp, 20ps, 20					4,8	156
25	4,6	170	4,6	170	4,6	170
30	4,5	179	4,5	179	4,5	179
35	4,2	207	4,2	207	4,4	187
40	4,1	217	4,1	217
45	4,0	229	4,0	229	4,3	197
50	3,9	241	3,9	241	4,2	207
55	3,8	255	3,8	255	4,1	217
60					4,0	229
65
70	3.7 V	269	3.7 V	269
15G	4,7	163	4,7	163	4,7	163
20G	4,3	197	4,3	197	4,5	179
30G	4,1	217	4,1	217	4,4	187
40G	4,0	229	4,0	229	4,2	207
50G	3,8	255	3,8	255	4,1	217
60G	3.7 V	269	3.7 V	269	4,0	229
65G	3,6	285	3,6	285
70G
10G2	+	+	+	+	4,3	197
35G2					4,2	207
20X					4,5	179
30S					4,4	187
38KHA					4,2	207
40X					4,1	217
45KH					4,0	229
Notes: 1 hardness Norms for normalized rolled was not a rejection until 01.01.98. 2 the Sign «+" means that the hardness testing is carried out for the dataset and testing results are entered into the document of quality.

4.2 Characteristics set by the consumer

4.2.1 hot-rolled high precision thickness, flatness is improved, high and very high according to GOST 19903.

4.2.2 rental universal broadband, lengths or multiple lengths, improved flatness, curvature Rebrovo class A according to GOST 82.

4.2.3 plates of thickness up to 80 mm incl. with cut edge.

4.2.4 Bicycle with a mass fraction of sulfur 0,020%-0,035%.

4.2.5 rental with a mass fraction of sulfur and phosphorus, reduced against the norms GOST 1050, GOST 4543, GOST 9045, GOST 14959.

4.2.6 rolled in thickness up to 80 mm incl. in heat-treated (normalized, annealed, vysokoopasnye).

4.2.7 the products with thickness up to 80 mm incl. in the heat-treated condition with a hardness shown in table 2.

4.2.8 the products with thickness up to 80 mm of steel grades 08KP, 08ps, 08, 10kp, 10ps, 10, 15kp, 15ps, 15, 20kp, 20ps and 20 without heat treatment and with continuous rolling mills with a hardness in accordance with the rules of table 2 for annealed or vysokoopasnye rental.

4.2.9 rolled thickness 80 mm incl. with mechanical properties in accordance with the requirements given in table 3.

Table 3 - Mechanical properties of rolled

Steel grade	Rolled plates						Broadband normalized or normalized rolled billet
	without heat treatment, after controlled rolling or normalized			annealed or vysokoopasnye
	Yield strength, H/mm (kgf/mm)	Temporary resistance , H/mm (kgf/mm)	The fre — Sitel- ing elongation , %	Limit yield , H/mm(kgf/mm)	Temporary resistance , H/mm (kgf/mm)	The fre — Sitel- ing elongation , %	Yield strength, H/mm (kgf/mm)	Temporary resistance , H/mm (kgf/mm)	The fre — Sitel- ing elongation , %	Regarding the narrowing of the transverse river sections, %
	not less than
08KP, 08JU	+	310 (32)	34	+	270 (28)	34	175 (18)	290 (30)	35	60
08ps			32			32
08							196 (20)	320 (33)	33
10kp		320 (33)					185 (19)	310 (32)		55
10ps		330 (34)			290 (30)
10							205 (21)	330 (34)	31
15kp		340 (35)	30		300 (31)	31		350 (36)	29
15ps		370 (38)			320 (33)	30
Fifteen							225 (23)	370 (38)	27
20kp		380 (39)	27		340 (35)	28		380 (39)
20ps		410 (42)	28		370 (38)
20							245 (25)	410 (42)	25
25		440 (45)	25		400 (41)	26	275 (28)	450 (46)	23	50
30		480 (49)	24		430 (44)	24	295 (30)	490 (50)	21
35		520 (53)	21		480 (49)	22	315 (32)	530 (54)	20	45
40		560 (57)	20		520 (53)	21	335 (34)	570 (58)	19
45		590 (60)	18		550 (56)	19	355 (36)	600 (61)	16	40
50		630 (64)	16		580 (59)	17	+	+	+	+
55		+	+		+	+
60
65
70
15G		420 (43)	28		380 (39)	29
20G		440 (45)	27		400 (41)	28
30G		+	+		+	+
40G
50G
60G
65G		740 (75)	12
70G		780 (80)	10
10G2		440 (45)	28		400 (41)	29
35G2		+	+		+	+
20X
30S
40X
45KH
38KHA
Notes 1 For the steel grade 08JU rules apply only to plates. 2 With plate thickness of over 20 mm are allowed a decrease of the elongation at 0.25% abs. for every millimeter increase in thickness, but not more than 2% for products with thickness up to 32 mm incl. and 3% for products with thickness of 32 mm. St 3 For annealed rolled steel grades 35, 40, 45 and 50 mm may reduce strength of 39 N/mm(4 kg/mm). 4 the «+" Sign means that the control characteristics of the dataset. Inspection results are entered into the document of quality.

4.2.10 the products with thickness up to 80 mm of steel grades 08KP, 08ps, 08, 10kp, 10ps, 10, 15kp, 15ps, 15, 20kp, 20ps and 20 without heat treatment and with continuous rolling mills with mechanical properties in accordance with the rules of table 3 for annealed or vysokoopasnye rental.

4.2.11 rolled without heat treatment, after controlled rolling and the normalized thickness up to 80 mm incl. from steel grades 10, 15, 20, 15G and 20G with a normalized impact strength KCU not less than 29 j/cm(3 kgf · m/cm) at a temperature of minus 20 °C.

4.2.12 the products with thickness up to 60 mm incl. with the bend test cold 180° when the thickness of the mandrel specified in table 4. The bending point should be no fracture, delamination and cracks visible to the naked eye.

Table 4 - bend Test in cold state

Steel grade	The thickness of the mandrel with plate thickness of
	up to 20 mm incl.	St. 20 mm
08KP, 08ps, 08, 08JU, 10kp, 10ps, 10, 15kp, 15ps	= 0,5	=
15, 20kp, 20ps, 20	=	= 2
25, 30, 35	= 2	= 3

4.3 Characteristics and norms established by agreement between the consumer and the manufacturer

4.3.1 hire a clarification of the requirements regarding assortment GOST and GOST 19903 82.

4.3.2 plates in length from 1.5 to 5 m.

4.3.3 plates with thickness more than 80 mm from the cut edge.

4.3.4 rental with a normalized total mass fraction of sulfur and fosforito.

4.3.5 rental with low mass fraction of residual elements in the steel relative to the standards GOST 1050, GOST 4543, GOST 9045, GOST 14959.

4.3.6 rental with the increased mass fraction of residual elements (chromium, Nickel, copper) to steel produced scrap — or scrap-ore process, with respect to the standards GOST 1050, GOST 4543, GOST 9045, GOST 14959.

4.3.7 rolled steel with a mass fraction of carbon in the mark at the lower limit not less than 0.3% with a guarantee of depth of decarburization (ferrite + transition zone) no more than 2% on the side of the actual sheet thickness.

4.3.8 rolled thickness over 80 mm in the heat treated condition.

4.3.9 rolled thickness over 80 mm with hardness control.

4.3.10 rental with mechanical properties in the normalized condition in accordance with the standards specified in table 5.

Table 5 - Mechanical properties of rolled in a normalized condition

Steel grade	Thickness, mm	Yield strength , N/mm(kgf/mm), not less than	Tensile strength , N/mm(kgf/mm)	Elongation , %
				along	across
				the direction of rolling
				not less than
20	Up to 100	230 (23,5)	400−550 (41−56)	27	25
	From 100 to 160	210 (21,5)	380−520 (39 to 53)	25	23
25	Up to 16	260 (26,5)	420−570 (43−58)	25	23
	From 16 to 100	240 (24.5 cm)
	From 100 to 160	220 (22,5)	400−550 (41−56)	23	21
30	Up to 16	280 (28,5)	450−630 (46−64)	23	21
	From 16 to 100	250 (25,5)
	From 100 to 160	230 (23,5)	430−610 (44−62)	21	19
35	Up to 16	300 (30,5)	480−670 (49−68)	21	19
	From 16 to 100	270 (27,5)
	From 100 to 160	245 (25)	460−650 (47−66)	19	17
40	Up to 16	320 (32,5)	530−720 (54−73)	19	17
	From 16 to 100	290 (29.5 in)
	From 100 to 160	260 (26,5)	510−700 (52−71)	17	15
45	Up to 16	340 (34,5)	580−770 (59−79)	17	15
	From 16 to 100	305 (31)
	From 100 to 160	275 (28)	560−750 (57−76)	15	13
50	Up to 16	355 (36)	600−820 (61−84)	16	14
	From 16 to 100	320 (32,5)
	From 100 to 160	290 (29.5 in)	580−800 (59−82)	14	12
55	Up to 16	370 (37,5)	630−870 (64−89)	15	13
	From 16 to 100	330 (33.5 in)
	From 100 to 160	300 (30,5)	610−850 (62−89)	13	11
60	Up to 16	380 (39)	650−920 (66−94)	14	12
	From 16 to 100	340 (34,5)
	From 100 to 160	310 (31,5)	630−880 (64−90)	12	10
Note — the rules of the mechanical properties was not looking to 01.01.98. Inspection results are entered into the document of quality.

4.3.11-rolled mechanical properties after quenching with vacation in accordance with the standards specified in table 6.

Table 6 - Mechanical properties of rolled after quenching with vacation

Steel grade	For products with thickness, mm
	up to 16 incl.					St. 16 to 40
	Yield strength, N/mm (kgf/mm) not less than	Tensile strength, N/mm (kgf/mm)	Regarding elongation, %	Regarding contraction, %	Job blow KV, at 20 °C, J (kgf · m)	Yield strength, N/mm (kgf/mm)	Tensile strength, N/mm (kgf/mm)
			not less than
20	350 (35,5)	550−700 (56−72)	20	50	50 (5,0)	300 (30,5)	500−650 (51−66)
25	370 (37,5)		19	45	45 (4,5)	320 (32,5)
30	400 (41)	600−750 (61−76)	18	40	40 (4,0)	350 (35,5)	550−700 (56−71)
35	430 (44)	630−780 (64−80)	17		35 (3,5)	370 (37,5)	600−750 (61−76)
40	460 (47)	650−800 (66−82)	16	35	30 (3,0)	400 (41)	630−780 (64−80)
45	500 (51)	700−850 (71−87)	14		25 (2,5)	430 (44)	650−800 (66−82)
50	520 (53)	750−900 (76−92)	13	30	+	460 (47)	700−850 (71−87)
55	550 (56)	800−950 (82−97)	12			500 (51)	750−900 (76−92)
60	580 (59)	850−1000 (87−102)	11	25		520 (53)	800−950 (82−97)
30S	650 (66,5)		12	40	35 (3,5)	550 (56)	750−900 (76−92)
38KHA	750 (76,5)	950−1150 (97−117)	11	35	30 (3,0)	630 (64)	850−1000 (87−102)
40X	800 (81,5)	1000−1200 (102−122)	10	30		660 (67,5)	900−1100 (92−112)

End of table 6

Steel grade	For products with thickness, mm
	St. 16 to 40			St. 40 to 100
	Regarding elongation, %	Regarding contraction, %	Job blow KV, at 20 °C j (kgf·m)	Yield strength, N/mm (kgf/mm)	Tensile strength, N/mm (kgf/mm)	Regarding elongation, %	Regarding contraction, %	Job blow KV, at 20 °C j (kgf·m)
	not less than				not less than
20	22	50	50 (5,0)	-	-	-	-	-
25	21		45 (4,5)
30	20	45	40 (4,0)	300 (30,5)	500−650 (51−66)	21	50	40 (4,0)
35	19		35 (3,5)	320 (32,5)	550−700 (56−71)	20		35 (3,5)
40	18	40	30 (3,0)	350 (35,5)	600−750 (61−76)	19	45	30 (3,0)
45	16		25 (2,5)	370 (37,5)	630−780 (64−80)	17		25 (2,5)
50	15	35	+	400 (41)	650−800 (66−82)	16	40	+
55	14			430 (44)	700−850 (71−87)	15
60	13	30		450 (46)	750−900 (76−92)	14	35
30S	14	45	40 (4,0)	410 (42)	650−800 (66−82)	15	50	45 (4,5)
38KHA	13	40	35 (3,5)	510 (52)	750−900 (76−92)	14	40	35 (3,5)
40X	12	35		560 (57)	800−950 (82−97)
Notes: 1 testing Results of mechanical properties optional to 01.01.98. 2 Norms of mechanical properties of rolled steel, grade 30 is shown for thicknesses up to 63 mm. 3 the «+" Sign means that the characteristic is determined for the data set. The results are entered into the document of quality.

4.3.12 rental of quiet steel grades with controlled toughness at minus 20, minus 40 or minus 50 °C.

4.3.13 rental with ultrasonic testing.

Rules of continuity — in accordance with classes 1, 2, 3 according to GOST 22727.

4.3.14 hire more than 10 mm thickness with normalized points of the macrostructure.

4.3.15 hire, purified from the dross. Method of descaling chosen by the manufacturer.

4.3.16 rental guarantee weldability. Weldability is ensured by the manufacturing technology and chemical composition.

4.3.17 With deburring.

4.3.18 With the tile test of mechanical properties of rolled steel of grade 20.

4.3.19 rental in chemical composition.

4.4 Marking of rental with GOST 7566.

4.4.1 Transport marking under GOST 14192.

4.5 Packaging, the formation of packs and bundles of rolled — GOST 7566.

4.5.1 Packaging products for the far North and equated to them districts, — the churchyard 15846.

4.5.2 hire, purified from dross by etching, must be lubricated on both sides with neutral oil or a neutral oil with the addition of the inhibitor.

5 acceptance Rules

5.1 General rules of acceptance of rental — according to GOST 7566.

5.2 the hire show to the acceptance of the parties.

The party should consist of sheets, coils or strips of the same steel grade, the same thickness dimension, one mode of heat treatment for heat-treated rolled, and rolled from ingots and continuous caster from one melting-ladle.

In batch installations of continuous casting of the difference in the mass fraction of carbon in the steel shall not exceed 0.04 percent, and mass fraction of manganese, 0.15 per cent.

The weight of the batch, bottled on the continuous casting plant must be no more than 400 g.

Allowed the formation of party rental base available in several heats of steel.

5.3 Each shipment is accompanied by a quality document in accordance with GOST 7566.

In accordance with the order document of quality which has two kinds of filling:

— showing: «Products correspond to GOST 1577−93»;

— showing the results of all types of the tests.

Note — If no order document type as documents are made at the discretion of the manufacturer.

5.4 the hire are subjected to acceptance testing.

5.5 To check the quality of the party rentals select:

1) chemical analysis — samples according to GOST 7565.

The manufacturer carries out control of the chemical composition in the screener sample, if necessary — in ready rental;

2) for surface quality control — all sheets, coils and strips;

3) to control the size, two sheet, coil or strip, at tile rolling — all sheets, coils or strips;

4) for controlling the shape of two sheet, coil or strip;

5) to control the hardness and mechanical properties, macrostructure, testing for cold bending — single sheet, roll or single lane.

Upon delivery of the hire in the heat-treated control leaves taken from the middle of the charge. During heat treatment of rolled in continuous heat-treatment furnaces checklists are selected arbitrarily.

From rolled, manufactured at the mills of continuous rolling and do not require heat treatment, samples are taken from the outer lap of the coil.

5.6 allowed for party rental test results sheets, coils and strips of steel one melting on macrostructure and mechanical properties obtained from parties rental of large thickness, spread on party rentals in smaller thicknesses.

5.7 If unsatisfactory test results of at least one of the indicators, repeat tests carried out according to GOST 7566.

6 test Methods

6.1 Chemical analysis were carried out according to GOST 28473, GOST 22536.0 to GOST 22536.10,12344 GOST-GOST 12352, 12354 series GOST, GOST 12357, 12360 GOST or other methods providing the required accuracy.

For steel plants continuous casting difference in the mass percentage of carbon and manganese in the party set bucket analysis.

6.2 Geometric dimensions and deviation from flatness is determined by means of measuring instruments according to the GOST 26877, 162 GOST, GOST 166, GOST 427, GOST 7502 or instruments, certified according to GOST 8.001 or GOST 8.326.

The thickness of the rolled measured at a distance of not less than 100 mm from the ends and 40 mm from the edges.

6.3 Sampling for mechanical tests on table 3 and technological tests carried out according to GOST 7564.

Sampling for mechanical tests in tables 5 and 6 is carried out in accordance with Annex 2.

6.4 the Quality of rolled product surface is controlled visually. Rolling in the absence of delamination is controlled by the inspection of edges and ends without the use of magnifying devices. Allowed the use of devices such as IGT-10НК or other devices of this class. When visual detection of the separation quality of hire are additionally checked by the removal of chips. The split chip is a sign of discontinuity flaws of metal.

Allowed the consumer the lack of stratification to control after cutting.

6.5 From each of the selected control sheet, coil or strip select:

— for tensile tests and bending — one sample;

to test for the impact strength — two samples from rolled steel of a thickness of 5 mm or more;

— to check the macrostructure is one templet transverse length of 250 mm from the middle part of the width of the rolled;

— to test the hardness of two samples: one with the edge, the other from the middle part of the width of the rolled;

— to control the depth bezoperatsionnogo layer — one sample from the edge of the width rolled.

6.6 tensile Test is carried out according to GOST 1497.

Samples for testing the mechanical properties of broadband products (see table 3), supplied without heat treatment, manufactured from normalized billets with a thickness of 25 mm. With the strip thickness less than 25 mm the normalization is performed on the workpieces equal to the thickness of the strip.

6.7 Samples for tensile testing and impact toughness (see tables 5 and 6) are cut from heat-treated billets of size specified by the user.

6.8 the bending Test is carried out according to GOST 14019.

6.9 the Recommended modes of heat treatment of workpieces for testing the mechanical properties (see tables 5 and 6) are given in Appendix 3.

6.10 the Test for impact strength is carried out according to GOST 9454 on samples of types 1, 2, 3, and 11.

The mode of heat treatment of workpieces (samples) for determination of impact strength at a temperature of minus 20 C, minus 40 °C or minus 50 °From the rental of quiet steel grades determined by agreement between manufacturer and consumer.

6.11 hardness test is carried out according to GOST 9012.

6.12 Control of macrostructure is carried out by etching with GOST 10243. The manufacturer can guarantee the requirements of the macrostructure without holding control.

The methodology and the scale to control the macrostructure of rolled in thicknesses more than 10 mm is determined by agreement between manufacturer and consumer.

6.13 determination of the depth bezoperatsionnogo layer is carried out according to GOST 1763.

6.14 Ultrasonic inspection is carried out according to GOST 22727.

6.15 For the control of the macrostructure, mechanical properties, hardness and bezoperatsionnogo layer is allowed to apply non-destructive and statistical control methods according to the method approved in the prescribed manner.

In technically justified cases at the request of the consumer produce, the control of mechanical properties according to GOST 1497, GOST 9454.

7 Transportation and storage

7.1 Transportation and storage — by GOST 7566.

7.2 rental is transported by all kinds of transport in accordance with cargo carriage regulations applicable to transport of this species.

7.3 During transport rental rail type of shipment carload.

Loading, fastening and placement of rental must be in accordance with the technical conditions of loading and fastening of goods* approved by the Ministry of Railways, and GOST 22235.
________________
* Probably, the error of the original. Should read: «Technical conditions of loading and fastening cargoes». — Note the manufacturer’s database.

ANNEX 1 (mandatory). Scheme legend rental

ANNEX 1
(required)

The rental — sheet, strip

The accuracy of manufacture of rolled products

Flatness

Character edges

The size of the rental

The number of the standard assortment

Steel grade

Hardness

Mechanical properties

Additional requirements 4.2 and 4.3

The condition of the rental (thermally

processed without heat

treatment, after controlled rolling)

View document completion of the quality

X

X

X

X

X

GOST…/X

X

X

X

X X GOST 1577−93

Figure 1

In the design documentation it is allowed to give examples of symbols in accordance with the scheme shown in figure 2. The amount of information shown in the design documentation may be reduced.

The rental — sheet, strip

The accuracy of manufacture of rolled products

Flatness

Character edges

The size of the rental

The designation of the standard assortment

X

X

X

X

X

GOST X. .

X

X

X

X

X

X GOST 1577−93

View document completion of the quality

The condition of the rental (heat processed

without heat treatment, after controlled rolling)

Additional requirements 4.2 and 4.3

Mechanical properties

Hardness

Steel grade

Figure 2

Examples of symbols

Rolled plate, the normal accuracy in thickness (B), the normal flatness (PN), with cut edges (O), size 6х700х6000 mm according to GOST 19903, steel grade 20, with a hardness (TV1), the mechanical properties in table 3 (M1), with the bend test in cold state (S) in heat-treated condition (THAT), filling in the document about the quality of the form DK1:

Sheet B-MON-O-6x700x6000 GOST 19903−74/20-TV1-M1-KI-IT-DK1 GOST 1577−93

Rolled plate, the normal accuracy in thickness (B), the normal flatness (MON), mill edge (BUT), size 6х700х6000 mm according to GOST 19903, of steel grade 08, with a hardness in table 2 for annealed or vysokoopasnye hire (TV2), with mechanical properties in table 3 for annealed or vysokoopasnye rental (M2), without heat treatment, with the filling of the document on a view from DK1:

Sheet B-PN-NO-6х700х6000 GOST 19903−74/08-TV2-M2-DK1 GOST 1577−93

Rental broadband random length (ND), improved flatness (PU), with Rebrovo curvature class A, mill edge (BUT), size 6х700х6000 mm according to GOST 82, of steel grade 35, hardness table 2 (TB1), with mechanical properties according to table 5 (MOH), with the guarantee of decarburization no more than 2% to the side (1C), with ultrasonic testing of class 2 (2УЗК), without heat treatment, filling of document on as ДК2:

Band of ND-PU-A-BUT-6x700x6000 GOST 82−70/35-TB1-M3−1C-2УЗК-ДК2 GOST 1577−93

Examples of symbols allowed in the design documentation:

Rolled plate, the normal accuracy in thickness (B), the normal flatness (PN), with cut edges (O), size 6х700х6000 mm according to GOST 19903, steel grade 20, with a hardness according to table 2 (TB1), the mechanical properties in table 3 (M1), with the bend test in cold state (S) in heat-treated condition (THAT):

Rental broadband random length (ND), improved flatness (PU); Rebrova curvature class A, mill edge (BUT), size 6х700х6000 mm according to GOST 82, of steel grade 35, hardness table 2 (TB1), with mechanical properties according to table 5 (M3) with a guarantee of decarburization no more than 2% to the side (1C), with ultrasonic testing of class 2 (2УЗК), without heat treatment:

ANNEX 2 (mandatory). The scheme of sampling for monitoring of the mechanical properties given in tables 5 and 6

ANNEX 2
(required)

b — width of the rental; A and B — sampling site

Figure 1

Table 1

View test	Thickness, mm	The position of the longitudinal axis of the sample relative to the direction of rolling		The position of the sample relative to the surface, mm
		Of <600 mm	600 mm
Tensile	30	Along	Across
	>30
The impact strength (incision vertically to the rolled surface)	>10	Along	Along	*
* For products with thickness of 5−10 mm sample width equal to the thickness of the rolled thickness of 10 mm. For products with thickness more than 30 mm, the sample is in agreement with the consumer is cut on the distance of the rolled thickness.

APPENDIX 3 (reference). The heat treatment of the blanks for the control of mechanical properties given in tables 5 and 6

APPENDIX 3
(reference)

Table 1

Steel grade	The heat treatment, °C
	Normalization	Hardening		Vacation cooling air
		in the water	in oil
20	880−910	860−890	-	540−680
25
30	870−900	850−880
35	860−890	840−870	850−880
40	850−880	830−860	840−870
45	840−870	820−850	830−860
50	835−865	810−840	820−850
55	830−860	805−835	815−845
60	820−850	800−830	810−840
30S	860−900	840−870	850−880
38KHA	845−885	825−855	835−865
40X	840−880	820−850	830−860

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
High quality steel: Sat. Standards. -
M.: IPK Publishing house of standards, 2002