INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION
(MGS)

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION
(ISC)

Foreword

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 “Interstate standardization system. Basic Provisions” and GOST 1.2-97 “Interstate Standardization System. Interstate standards, rules and recommendations for interstate standardization. The order of development, adoption, application, updating and cancellation "

About the standard

1 DEVELOPED by the Research Institute "UkrNIImet" of the Ukrainian State Scientific and Technical Center "Energostal", the Interstate Technical Committee for Standardization MTK 327 "Rolled bars, shaped and special profiles"

2 INTRODUCED by the State Committee of Ukraine on Technical Regulation and Consumer Policy

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 28 of December 9, 2005)

Short country name according to MK (ISO 3166) 004-97	Code of the country according to MK (ISO 3166) 004-97	Abbreviated name of the national authority for standardization
Azerbaijan		Azstandard
Armenia	AM	Ministry of Trade and Economic Development
Belarus		State Standard of the Republic of Belarus
Kazakhstan		State Standard of the Republic of Kazakhstan
Kyrgyzstan		Kyrgyzstandart
Moldova	M D	Moldova-Standard
Russian Federation		Federal Agency for Technical Regulation and Metrology
Tajikistan		Tajikstandart
Uzbekistan		Uzstandard
Ukraine		Gospotrebstandart of Ukraine

7 REVISION. April 2008

Information about administered in action (termination action) of this standard published in index "National standards".

Information about changes to present standard published in index "National standards", a text changes - in information signs "National standards". AT case revision or cancellation present standard relevant information will be published in informational index "National standards"

GOST 535-2005

INTERSTATE STANDARD

STYLES AND SHAPED CARBON STEEL OF ORDINARY QUALITY

General specifications

Common quality carbon steel bar and shaped sections. General specifications

Introduction date - 2008-07-01

1 area of use

This standard applies to hot-rolled sections and shaped steel for general and special purposes from carbon steel of ordinary quality.

2 Normative references

This standard uses normative references to the following interstate standards:

3.4.1 Rolled products for SVP profiles for lining mine workings according to GOST 18662 are made of steel grades St5ps and St5sp.

3.5 Depending on the normalized indicators, the rental is divided into categories: 1, 2, 3, 4, 5, 6, 7.

3.6 It is allowed to manufacture rolled products from 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).

3.7 The scheme of rental symbols is given in the appendix.

4 General technical requirements

4.1 Rolled products are manufactured in accordance with the requirements of this standard according to the technological regulations approved in in due course.

4.2 The chemical composition of steel must comply with GOST 380.

4.3 Rolled products are made in a hot-rolled state. Heat treatment can be used to provide the required properties.

4.4 At the request of the consumer, rolled products are manufactured with a guarantee of weldability (“cv"). Weldability is ensured by the chemical composition of the steel and the technology of rolled products.

Carbon equivalent (C eq) should not exceed 0.45%.

4.6 The mechanical properties of rolled products in tension, as well as the conditions for bending tests in a cold state, must comply with the standards given in the table.

4.7 Impact strength of rolled products must comply with the standards given in the table.

4.8 Lamination of rolled products is not allowed.

4.9 On the surface of rolled products of group 1GP, individual rolled bubbles and impurities, ripples, imprints, risks that do not lead the profile dimensions beyond the minus deviation are allowed without stripping. Other types of defects must be removed by gentle cleaning or cutting, which does not take the profile size beyond the minus deviation.

4.10 On the surface of rolled products of group 2ГП, individual rolled bubbles and impurities, ripples, imprints, risks that do not lead the profile dimensions beyond the minus deviation are allowed without stripping. Other types of defects must be removed by gentle cleaning or cutting, the depth of which should not exceed:

The sum of the maximum deviations of the diameter or thickness - for bars with a size of 40 mm or less;

5% of diameter or thickness - for bars larger than 40 mm up to and including 140 mm;

8% of diameter or thickness - for bars larger than 140 mm. The depth of stripping or cutting is calculated from the minimum size of the rolled product.

In the cross section of rolled products with a size (diameter or thickness) of 140 mm and more, no more than two strippings of maximum depth are allowed, which should not be located on the same axis.

Table 1

	steel grade	Chemical composition	Temporary resistance	Yield strength	Relative extension	Cold bend	impact strength
							KCU	CV
							At temperature, °С	At temperature, °С

	St0
	St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, St3kp, St3ps, St3sp, St4kp, St4ps, St4sp, St6ps, St6sp
	St6ps, St6sp
	St3kp, St3ps, St3sp, St3Gps, St4kp, St4ps, St4sp, St6ps, St6sp, St6Gps
	St3ps, St3sp, St3Gps, St4ps, St4sp
	St3ps, St3sp, St3Gps, St3Gsp
	St3ps, St3sp, St3Gps, St3Gsp
	St3ps, St3sp, St3Gps, St3Gsp
	St3ps, St3sp, St3Gps, St3Gsp
Notes 1 The sign "+" means that the indicator is normalized, the sign "-" means that the indicator is not normalized. 2 The chemical composition of steel according to melting analysis or in finished rolled products - in accordance with the order.

table 2

	Temporary resistance s in , N / mm 2 (kgf / mm 2), for rolled products of thickness, mm		Yield strength s t , N / mm 2 (kgf / mm 2), for rolled products of thickness, mm					Relative extension d5 , %, for rolled products of thickness, mm			Bending to parallel sides ( a- sample thickness,d- mandrel diameter), for rolled products of thickness, mm
			up to 10 incl.	St. 10 to 20 incl.	St. 20 to 40 incl.	over 40 to 100 incl.	St. 100	up to 20 incl.	St. 20 to 40 incl.	St. 40
	up to 10 incl.	St. ten	at least								up to 20 incl.	St. twenty
St0	At least 300 (31)
St1kp	305 - 390 (31 - 40)		(20)	(20)	(19)	(18)	(17)				d = a	d = 2a
St1ps St1sp	315 - 410 (32 - 42)		(21)	(21)	(20)	(19)	(18)				d = a	d = 2a
St2kp	325 - 410 (33 - 42)		(22)	(22)	(21)	(20)	(19)				d = a	d = 2a
St2ps St2sp	335 - 430 (34 - 44)		(23)	(23)	(22)	(21)	(20)				d = a	d = 2a
St3kp	360 - 460 (37 - 47)		(24)	(24)	(23)	(22)	(20)				d = a	d = 2a
St3ps	370 - 480 (38 - 49)		(25)	(25)	(24)	(23)	(21)				d = a	d = 2a
St3sp	380 - 490 (39 - 50)	370 - 480 (38 - 49)	(26)	(25)	(24)	(23)	(21)				d = a	d= 2a
St3Gps	370 - 490 (38 - 50)			(25)	(24)	(23)	(21)				d = a	d = 2a
St3Gsp	390 - 570 (40 - 58)				(25)							d = 2a
St4kp	400 - 510 (41 - 52)		(26)	(26)	(25)	(24)	(23)				d = 2a	d = 3a
St4ps St4sp	410 - 530 (42 - 54)		(27)	(27)	(26)	(25)	(24)				d = 2a	d = 3a
St5ps St5sp	490 - 630 (50 - 64)		(29)	(29)	(28)	(27)	(26)				d = 3a	d = 4a
St5ps St5sp	490 - 630 (50 - 64)		(30)	(29)	(28)	(27)	(26)				d = 3a	d = 4a
St5Gps	450 – 590 (46 - 60)			(29)	(28)	(27)	(26)				d = 3a	d = 4a
St6ps St6sp	Not less than 590 (60)		(32)	(32)	(31)	(30)	(30)
Notes 1 By agreement between the manufacturer and the consumer, it is allowed: Reducing the yield strength by 10 N / mm 2 (1 kgf / mm 2) for shaped steel with a thickness of more than 20 mm; Reduction in relative elongation by 1% (abs.) for shaped steel of all thicknesses. 2 It is allowed to exceed the upper limit of temporary resistance by 49.0 N / mm 2 (5 kgf / mm 2), and in agreement with the consumer - without limiting the upper limit of temporary resistance, provided that other standards are met. At the request of the consumer, exceeding the upper limit of temporary resistance is not allowed.

Table 3

	Rolled thickness, mm	Impact strength, J / cm 2 (kgf× m / cm 2), not less than
		KCU				CV
			At temperature, °С		After mechanical aging		At temperature, °С
					After mechanical aging
St3ps St3sp St3Gps St3Gsp	From 3.0 to 5.0 incl.			49 (5)	49 (5)			9,8 (1,0)
	Over 5.0 to 10.0 incl.		108 (11)	49 (5)	49 (5)	12, 13	34 (3,5)
	St. 10.0 to 26.0 incl.		98 (10)	29 (3)	29 (3)		34 (3,5)
	St. 26.0 to 40.0 incl.		88 (9)
St4ps St4sp	From 3.0 to 5.0 incl.
	Over 5.0 to 10.0 incl.		98 (10)
	St. 10.0 to 26.0 incl.		88 (9)
	St. 26.0 to 40.0 incl.		69 (7)
Notes 1 The “-” sign means that the indicator is not standardized. 2 Determination of the impact strength of rolled products round section carried out starting from a diameter of 12 mm, square - starting from the side of a square of 11 mm. 3 It is allowed to reduce the value of impact strength on one sample by 30%, while the average value should not be lower than the standards indicated in this table. 4 Impact strength COP V determined with a thickness of rolled products up to 20 mm inclusive.

4.11 On the surface of rolled products of the ZGP group, defects are allowed without cleaning, the depth of which does not exceed:

Minus limit deviation - for diameter or thickness less than 100 mm;

The sums of limit deviations - for a diameter or thickness of 100 mm or more.

Depth of defects is considered from the nominal size.

4.12 The depth of occurrence, cleaning or cutting of defects on the surface of rolled products that do not have standardized limit deviations should not exceed 10% of the thickness of the controlled profile element.

4.13 Defects are removed by flat cleaning or cutting with a width of at least five times the depth.

4.14 The rental must be cut off.

4.14.1 When cutting rolled products in a cold state, waviness and chips are allowed on the cut (end) surface, which do not lead the length of the profile beyond the nominal size and limit deviations in length.

4.14.2 The oblique cut of shaped steel should not lead the length of the rolled product beyond the nominal size and maximum deviations in length. The height of the burr when cutting with scissors should not exceed: 1.0 mm - with a thickness of shaped steel up to 5.0 mm inclusive, 1.5 mm - with a thickness of more than 5.0 to 10 mm inclusive, 0.15 thickness - with a thickness of shaped steel over 10 mm.

4.14.3 The oblique cut of long products with a diameter (thickness) up to 80 mm inclusive is not standardized. The oblique cut of long products with a diameter (thickness) over 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 bars with scissors should not exceed 0.1 of the diameter (thickness).

4.14.4 The height of the burrs when cutting shaped and long products with saws should not exceed 3 mm.

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

4.14.6 When cutting long and shaped steel with scissors, knife prints up to 0.25 in diameter (thickness) and tightening of the ends of the rolled products are allowed.

4.15 Rolled products with a diameter (square side, width) up to 40 mm inclusive of random length are allowed to be manufactured with uncut ends.

By agreement between the manufacturer and the consumer, rolled products with a diameter (square side, width) over 40 mm inclusive are manufactured with uncut ends.

4.16 It is allowed to manufacture rolled products from steel grades E185 (Fe 310), E235 (Fe 360), E275 (Fe 430), E355 (Fe 510), Fe 490, Fe 590, Fe 690 with the requirements of ISO 630 [with additions:

Index "sb" and the value of the carbon equivalent C eq - for the combined batch;

Index " cw" - when supplying rolled products with weldability;

Index (*) for bucket sample or (S) for finished rolled products - when specifying the chemical composition.

8.3 To check the quality of rolled products in terms of chemical composition, mechanical and technological properties, the following are selected from the batch:

For chemical analysis - one sample from a melting ladle or one sample from finished rolled products of each melting ladle;

For cold tensile and bending tests - one rod, coil, strip or profile;

For impact bending test to determine impact strength - two bars, coils, strips or profiles.

8.4 When rolling the melt to different thicknesses (diameters, sides of the square), bars, coils, strips or profiles for mechanical testing taken from rolled products of minimum and maximum thickness.

8.5 To control the mass of rolled products, one bar, coil, strip or profile is selected from the batch.

8.6 To control the shape, dimensions of rolled products and surface quality, 10% of bars, coils, strips or profiles are selected from the batch, but not less than 5 pieces.

8.7 Chemical analysis finished rolled products and a cold bending test may not be carried out, the established standards are provided by the manufacturing technology.

8.8 Upon receipt of unsatisfactory test results for at least one indicator, a re-test is carried out in accordance with GOST 7566

In case of disagreement between the manufacturer and the consumer, the methods of analysis specified in this standard apply.

9.3 Carbon equivalent C eq is calculated by the formula

where С, Mn - mass fraction carbon and manganese according to melting analysis, %.

9.4 Sampling methods for mechanical and technological tests - according to GOST 7564.

9.4.1 From each bar, coil, strip or profile selected for control, the following are taken:

For tensile and bending tests - one sample each;

For testing for impact bending and determining impact strength after mechanical aging - two samples each.

9.5 Tensile test is carried out according to GOST 1497.

9.6 The bend test is carried out in accordance with GOST 14019.

9.7 The impact test is carried out according to GOST 9454.

The impact bending test of rolled products with a thickness of 5 mm or less is carried out on samples with a thickness equal to the thickness of the rolled products.

9.8 Determination of impact strength after mechanical aging is carried out according to GOST 7268.

9.9 When controlling mechanical properties, it is allowed to use statistical and non-destructive control methods according to regulatory documents on the methods of control of metal products that have passed the state registration.

In arbitration cases and during periodic quality checks, the control methods provided for in this standard are applied.

9.10 In the manufacture of rolled products of different thicknesses (diameter, side of the square) from steel of the same heat, samples for mechanical testing are taken from rolled products of the minimum and maximum thickness (diameter, side of the square) of each size group:

up to 10 mm inclusive;

St. 10 to 20 mm »

» 20 » 40 mm »

» 40 » 100 mm »

» 100 mm.

The test results apply to the entire size group.

In the manufacture of shaped steel from steel of the same heat, samples for mechanical testing are taken from each type or profile number. or tools certified in the prescribed manner. fifty

B.2 The surface of the rolled product must be smooth and not have surface defects that affect the further processing of the rolled product or its intended use.

B.3 Individual defects can be removed by the manufacturer by stripping, provided that the thickness should not go beyond the minus deviations, which are determined in accordance with international standards for long and shaped steel, in the absence of maximum deviations in international standards, the thickness of the rolled products should not decrease locally more than 6% of the nominal size.

B.4 Unless otherwise indicated, defects with a depth exceeding the maximum deviations in the thickness of the rolled products can be welded, and then the deposited metal is subject to the following restrictions:

a) the reduction in the thickness of rolled products as a result of the removal of a defect should not exceed 2% of the nominal thickness in one section before welding;

b) all welding operations must be carried out by qualified welders using welding electrodes of the correct grade of the material to be repaired, and then the welding process must be examined and approved.

B.5 Rentals are accepted by swimming trunks.

B.6 The volume of control of rolled products for testing must be at least 50 tons taken from each heat, the mass of which must be at least 50 tons.

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

One tensile test;

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

and, if specified in the order,

Set of three impact tests at 20 °C for category B grade.

Common quality carbon steel bar and shaped sections. General specifications

GOST 535-2005

Date of introduction - 2008-01-01

1 area of use

This standard applies to hot-rolled sections and shaped steel for general and special purposes from carbon steel of ordinary quality.

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 103-76 Hot-rolled steel strip. Assortment

GOST 162-90 Depth gauges. Specifications

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

GOST 380-2005 Carbon steel of ordinary quality. Stamps

GOST 427-75 Measuring metal rulers. Specifications

GOST 1497-84 (ISO 6892-84) Metals. Tensile test methods

GOST 2590-88 Hot-rolled round steel. Assortment

GOST 2591-88 Hot-rolled square steel. Assortment

GOST 2879-88 Hot-rolled hexagonal steel. Assortment

GOST 3749-77 Calibration squares 90°. Specifications

GOST 4781-85 Hot-rolled steel profiles for sheet piles. Specifications

GOST 5378-88 Goniometers with vernier. Specifications

GOST 6507-90 Micrometers. Specifications

GOST 7268-82 Steel. Method for determining the tendency to mechanical aging by impact bending test

GOST 7502-98 Measuring metal tapes. Specifications

GOST 7564-97 Rolled products. General rules sampling, blanks and samples for mechanical and technological tests

GOST 7565-81 (ISO 377-2-89) Cast iron, steel and alloys. Sampling method for determining the chemical composition

GOST 7566-94 Steel products. Acceptance, marking, packaging, transportation and storage

GOST 8239-89 Hot-rolled steel I-beams. Assortment

GOST 8240-97 Hot-rolled steel channels. Assortment

GOST 8509-93 Hot-rolled steel equal-shelf angles. Assortment

GOST 8510-86 Hot-rolled steel angle bars, unequal. Assortment

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

GOST 14019-2003 (ISO 7438:85) Metallic materials. Bending test method

GOST 17152-89 (ISO 7129-82) Hot-rolled steel sections for earthmoving machine knives. General specifications

GOST 17745-90 Steels and alloys. Methods for determining gases

GOST 18662-83 Hot-rolled profiles SVP for lining mine workings. Assortment

GOST 18895-97 Steel. Photoelectric spectral analysis method

GOST 19240-73 Rails for ground and overhead tracks. Assortment

GOST 19425-74 I-beams and special steel channels. Assortment

GOST 21026-75 Hot-rolled steel channels with bent flange 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 determining total carbon and graphite

GOST 22536.2-87 Carbon steel and unalloyed cast iron. Methods for the determination of sulfur

GOST 22536.3-88 Carbon steel and unalloyed cast iron. Phosphorus determination methods

GOST 22536.4-88 Carbon steel and unalloyed cast iron. Methods for the 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. Arsenic determination methods

GOST 22536.7-88 Carbon steel and unalloyed cast iron. Chromium determination methods

GOST 22536.8-87 Carbon steel and unalloyed cast iron. Methods for determining copper

GOST 22536.9-88 Carbon steel and unalloyed cast iron. Nickel determination methods

GOST 22536.10-88 Carbon steel and unalloyed cast iron. Methods for the determination of aluminum

GOST 22536.11-87 Carbon steel and unalloyed cast iron. Titanium determination methods

GOST 26020-83 Hot-rolled steel I-beams with parallel flange edges. Assortment

GOST 26877-91 Steel products. Methods for measuring shape deviations

GOST 27809-95 Cast iron and steel. Spectrographic analysis methods

GOST 28033-89 Steel. Method of X-ray fluorescence analysis

Note - When using this standard, it is advisable to check the validity of the referenced standards under the index " National Standards”, compiled as of January 1 of the current year, and according to the relevant information signs published in current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent not affecting that reference.

3 Classification. Main parameters and dimensions

3.1 Rolled products are divided into sectional and shaped.

Rolled products are classified as rolled products, in which the tangent to any point of the cross-sectional contour does not intersect this section (rolled products are round, square, hexagonal, strip).

To shaped include rolled products, in which the tangent at least at one point of the cross-sectional contour crosses this section (I-beam, channel, corner and special-purpose profiles).

3.2 Depending on the quality of the surface, the rolled products are divided into groups:

1GP - for use without surface treatment;
2GP - for hot forming;
3GP - for cold machining by cutting.

The group is specified in the order.

The group, if it is not specified in the order, is set by the manufacturer.

Shaped products are made only by groups 1ГП.

3.3 In terms of shape, dimensions and maximum deviations, rolled products must meet the requirements of:

GOST 103 - for strip;
GOST 2590 - for round;
GOST 2591 - for square;
GOST 2879 - for hexagonal;
GOST 4781 - for sheet piles;
GOST 8239 - for I-beams;
GOST 8240 - for channels;
GOST 8509 - for angular equal-shelf;
GOST 8510 - for angular unequal;
GOST 17152 - for profiles of knives of earth-moving machines;
GOST 18662 - for hot-rolled SVP profiles for lining mine workings;
GOST 19240 - for rails of ground and overhead tracks;
GOST 19425 - for beams and channels for special purposes;
GOST 21026 - for channels with a bent shelf for trolleys;
GOST 26020 - for I-beams with parallel flange edges and other regulatory documents approved in the prescribed manner.

3.4 Rolled products are made from steel grades: St0, St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, StZkp, StZps, StZsp, StZGps, StZGsp, St4kp, St4ps, St4sp, St5ps, St5sp, St5Gps, St6ps, St6sp according to GOST 380.

3.4.1 Rolled products for SVP profiles for lining mine workings according to GOST 18662 are made from steel grades St5ps and St5sp.

3.5 Depending on the normalized indicators, the rolled products are divided into categories: 1,2,3,4,5,6,7. The category is indicated in the order.

3.6 It is allowed to produce rolled products from 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 symbols rental is given in Appendix A.

4 General technical requirements

4.1 Rolled products are manufactured in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner.

4.2 The chemical composition of steel must comply with GOST 380.

4.3 Rolled products are made in a hot-rolled state. Heat treatment may be used to provide the required properties.

4.4 At the request of the consumer, rolled products are manufactured with a guarantee of weldability ("sv"). Weldability is ensured by the chemical composition of the steel and the technology of rolled products.

Carbon equivalent (C eq) should not exceed 0.45%.

4.6 Mechanical properties rolled products in tension, as well as the conditions of bending tests in the cold state, must comply with the standards given in table 2.

4.7 Impact strength of rolled products must comply with the standards given in table 3.

4.8 Lamination of rolled products is not allowed.

4.9 On the surface of rolled products of group 1GP, individual rolled bubbles of contamination, ripples, imprints, risks that do not lead the profile dimensions beyond the minus deviation are allowed without stripping. Other types of defects must be removed by gentle cleaning or cutting, which does not take the profile size beyond the minus deviation.

4.10 On the surface of rolled products of group 2GP, individual rolled bubbles and impurities, ripples, imprints, risks that do not lead the profile dimensions beyond the minus deviation are allowed without stripping. Other types of defects must be removed by gentle cleaning or cutting, the depth of which should not exceed:

the sum of the maximum deviations of the diameter or thickness - for bars with a size of 40 mm or less;
5% of the diameter or thickness - for bars larger than 40 mm up to and including 140 mm;
8% of diameter or thickness for bars over 140 mm.

The depth of stripping or cutting is calculated from the minimum size of the rolled product.

In the cross section of rolled products with a size (diameter or thickness) of 140 mm and more, no more than two strippings of maximum depth are allowed, which should not be located on the same axis.

Table 1

Notes

The sign "+" means that the indicator is normalized, the sign "-" means that the indicator is not normalized.
The chemical composition of steel according to melting analysis or in finished rolled products - in accordance with the order.

table 2

End of table 2

Notes

By agreement between the manufacturer and the consumer, it is allowed:
- reduction in yield strength by 10 N / mm 2 (1 kgf / mm 2) for shaped steel with a thickness of more than 20 mm;
- reduction in relative elongation by 1% (abs.) for shaped steel of all thicknesses.
It is allowed to exceed the upper limit of temporary resistance by 49.0 N / mm 2 (5 kgf / mm 2), and in agreement with the consumer - without limiting the upper limit of temporary resistance, provided that other standards are met. At the request of the consumer, exceeding the upper limit of temporary resistance is not allowed.

Table 3

End of table 3

Notes

The “-” sign means that the indicator is not standardized.
Determination of the impact strength of rolled products of round section is carried out starting from a diameter of 12 mm, square - starting from the side of a square of 11 mm.
It is allowed to reduce the value of impact strength on one sample by 30%, while the average value should not be lower than the standards indicated in this table.
The impact strength KCV is determined for rolled products up to and including 20 mm thick.

4.11 On the surface of rolled products of the ZGP group, defects are allowed without cleaning, the depth of which does not exceed:

minus limit deviation - for diameter or thickness less than 100 mm;
sums of limit deviations - for a diameter or thickness of 100 mm or more.

Depth of defects is considered from the nominal size.

4.12 The depth of occurrence, cleaning or cutting of defects on the surface of rolled products that do not have normalized limit deviations should not exceed 10% of the thickness of the controlled profile element.

4.13 Defects are removed by flat cleaning or cutting with a width of at least five times the depth.

4.14 The rental must be cut off.

1.0 mm - with a thickness of shaped steel up to 5.0 mm inclusive, 1.5 mm - with a thickness of over 5.0 to 10 mm inclusive, 0.15 thickness - with a thickness of shaped steel over 10 mm.

4.14.3 The oblique cut of long products with a diameter (thickness) up to 80 mm inclusive is not standardized.

The oblique cut of long products with a diameter (thickness) over 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 bars with scissors should not exceed 0.1 of the diameter (thickness).

4.14.4 The height of the burrs when cutting shaped and long products with saws should not exceed 3 mm.

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

4.14.6 When cutting long and shaped steel with scissors, knife prints up to 0.25 in diameter (thickness) and tightening of the ends of the rolled products are allowed.

4.15 Rolled products with a diameter (square side, width) up to 40 mm inclusive of random lengths are allowed to be made with uncut ends.

By agreement between the manufacturer and the consumer, rolled products with a diameter (square side, width) over 40 mm inclusive are manufactured with uncut ends.

4.16 It is allowed to manufacture rolled products from steel grades E185 (Fe 310), E235 (Fe 360), E 275 (Fe 430), E 355 (Fe 510), Fe 490, Fe 590, Fe 690 with the requirements of ISO 630 and ISO 1052, given in Appendix B.

5 Marking

5.1 Marking of rolled products - according to GOST 7566.

5.2 By agreement between the consumer and the manufacturer, the rental is color-coded in accordance with GOST 380.

6 Pack

6.1 Packing of rolled products - according to GOST 7566.

7 Rules for transport and storage

7.1 Transportation and storage - according to GOST 7566.

8 Acceptance rules

8.1 Rentals are accepted in batches. The batch should consist of rolled products of the same size and one melting ladle.

For rolled steel grade St0, the number of melts in a batch is not limited.

8.1.1 It is allowed to have several heats in a batch (combined batches), while the batch must consist of rolled products of the same size (diameter, thickness or number) and one steel grade. The chemical composition, tensile strength, yield strength, relative elongation, impact strength, cold bending and compliance with a given category of rolled products of this batch are determined by the float with the lowest carbon equivalent value (C eq).

Party weight - no more than 200 tons.

The mass of a batch of rolled products from blanks obtained on continuous casting machines by the “melt-for-melt” method is not more than 500 tons.

8.2 The batch must be accompanied by a quality document in accordance with GOST 7566 with the additions:

the index "sb" and the value of the carbon equivalent C eq - for the combined batch;
index "sv" - for the supply of rolled products with weldability;
index (*) for a ladle sample or (S) for finished rolled products - when indicating the chemical composition.

8.3 To check the quality of rolled products in terms of chemical composition, mechanical and technological properties, the following are selected from the batch:

for chemical analysis - one sample from a melting ladle or one sample from finished rolled products of each melting ladle;
for cold tensile and bending tests - one rod, coil, strip or profile;
for impact bending test to determine impact strength - two bars, coils, strips or profiles.

8.4 When rolling a melt to different thicknesses (diameters, sides of a square), bars, coils, strips or profiles for mechanical testing are selected from rolled products of minimum and maximum thickness.

8.5 To control the mass of rolled products, one bar, coil, strip or profile is selected from the batch.

8.6 To control the shape, dimensions of rolled products and surface quality, 10% of bars, coils, strips or profiles are selected from the batch, but not less than 5 pieces.

8.7 Chemical analysis of finished rolled products and cold bending tests may not be carried out, the established standards are provided by the manufacturing technology.

8.8 Upon receipt of unsatisfactory test results for at least one indicator, a re-test is carried out in accordance with GOST 7566.

9 Control methods

9.1 Sampling methods for determining the chemical composition of steel - according to GOST 7565.

9.2 Chemical analysis - according to GOST 17745, GOST 18895, GOST 22536.0 - GOST 22536.11, GOST 27809, GOST 28033 or other methods approved in the prescribed manner and providing the necessary accuracy of the analysis.

In case of disagreement between the manufacturer and the consumer, the methods of analysis specified in this standard apply.

9.3 Carbon equivalent C eq is calculated by the formula

(1)

where C, Mn are the mass fraction of carbon and manganese according to melting analysis, %.

9.4 Sampling methods for mechanical and technological tests - according to GOST 7564.

9.4.1 From each bar, coil, strip or profile selected for control, the following are taken:

for tensile and bending tests - one sample each;
for testing for impact bending and determining impact strength after mechanical aging - two samples each.

9.5 Tensile test is carried out according to GOST 1497.

9.6 Bending test is carried out in accordance with GOST 14019.

9.7 The impact test is carried out in accordance with GOST 9454.

The impact bending test of rolled products with a thickness of 5 mm or less is carried out on samples with a thickness equal to the thickness of the rolled products.

9.8 Determination of impact strength after mechanical aging is carried out according to GOST 7268.

9.9 When controlling mechanical properties, it is allowed to use statistical and non-destructive methods of control according to regulatory documents for methods of control of metal products that have passed state registration.

In arbitration cases and during periodic quality checks, the control methods provided for in this standard are applied.

up to 10 mm incl.;

St. 10 to 20 mm »

» 20 » 40 mm »

» 40 » 100 mm »

The test results apply to the entire size group.

In the manufacture of shaped steel from steel of the same heat, samples for mechanical testing are taken from each type or profile number.

9.11 The quality of the rolled surface is checked by inspection without the use of magnifying devices.

The stratification of rolled products is checked by external inspection of the ends and edges of rolled products.

9.12 The geometric dimensions and shape of the profile are checked in accordance with GOST 26877 using measuring instruments in accordance with GOST 162, GOST 166, GOST 427, GOST 3749, GOST 5378, GOST 6507, GOST 7502 or tools certified in the prescribed manner.

9.13 The control of the mass of rolled products is carried out by weighing one sample with a length of at least 0.3 m with a mass of 1 m of length up to 100 kg, a sample with a length of less than 0.3 m with a mass of 1 m of length of 100 kg or more.

Annex A

(mandatory)

Legend Examples

Rental designation scheme

Examples of symbols:

Hot-rolled round steel of ordinary rolling accuracy (B), curvature class II, 30 mm in diameter according to GOST 2590-88, made of steel grade St5ps, category 1, group 1GP:

Hot-rolled equal-shelf angle of high rolling accuracy (A), size 50x50x3 mm in accordance with GOST 8509-93, made of StZsp grade steel, category 2:

Hot-rolled I-beam with increased rolling accuracy (B), number 30 according to GOST 8239-89, made of St3ps grade steel, category 4:

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

I-beam with parallel edges of the shelves, number 40B2 according to GOST 26020-83, made of steel grade StZsp, category 5:

Hot-rolled unequal-shelf angle bars with high rolling accuracy (A), size 63 x 40 x 4 mm according to GOST 8510-86, made of StZsp grade steel, category 4, with a guarantee of weldability (sv):

Technical requirements for rolled products according to ISO 630:1995, ISO 1052:1982

B.1 The mechanical properties of rolled products in tension and the impact work must comply with the standards given in table B.1

The mechanical characteristics of rolled products with a thickness of more than 200 mm are set by agreement between the manufacturer and the consumer.

B.2 The surface of the rolled product must be smooth and not have surface defects that affect the further processing of the rolled product or its intended use.

the reduction in the thickness of rolled products as a result of the removal of a defect should not exceed 2% of the nominal thickness in one section before welding;
all welding operations must be carried out by qualified welders using welding electrodes of the correct grade of the material to be repaired, and then the welding process must be examined and approved.

B.5 Rentals are accepted by swimming trunks.

B.6 The volume of control of rolled products for testing must be at least 50 tons taken from each heat, the mass of which must be at least 50 tons.

B.7 From each controlled batch and thickness range in accordance with Table B.1, the following is carried out:

one tensile test;
a set of three impact tests at a temperature of 0 °C for category C grades and a set of three tests at a temperature of minus 20 °C for category D grades

and, if specified in the order,

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

Table B.1

Notes

Rolled steel grades E 185 (Fe 310) and E 235 (Fe 360) of category B are made with a thickness of less than 25 mm.
For rolled steel grades E 235 (Fe 360), E 275 (Fe 430), E 355 (Fe 510) with a thickness of more than 100 mm, the lower value of the temporary resistance is allowed to decrease by 20 N / mm 2.
The impact work is calculated as the average value of the tests of three samples, while the impact work of each sample must be at least 70% of the established norm.

Bibliography

ISO 630:1995 (ISO 630:1995) Structural steels. Rolled plate, broadband,

varietal and shaped profiles (Structural steels - Plates, wide flats, bars, sections and profiles)

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

INTERSTATE

STANDARD

General specifications

Official edition

Standartinform

Foreword

About the standard

2 INTRODUCED by the State Committee of Ukraine on Technical Regulation and Consumer Policy

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 28 of December 9, 2005)

Short name of the country according to MK (ISO 3166) 004-97	Code of the country according to MK (ISO 3166) 004-97	Abbreviated name of the national standards body
Azerbaijan		Azstandard
		Ministry of Trade and Economic Development
Belarus		State Standard of the Republic of Belarus
Kazakhstan		State Standard of the Republic of Kazakhstan
Kyrgyzstan		Kyrgyzstandart
		Moldova-Standard
Russian Federation		Federal Agency for Technical Regulation
		vaniya and metrology
Tajikistan		T ajikstandart
Uzbekistan		Uzstandard
		State consumer standard of Ukraine

4 Appendix B of this standard complies with international standards:

ISO 630:1995 Structural steels. Rolled thick-plate, wide-strip, sectional and shaped profiles" (ISO 630:1995 "Structural steels - Plates, wide flats, bars, sections and profiles", NEQ);

ISO 1052:1982 "Steel for general purposes" (ISO 1052:1982 "Steels for general engineering purposes", NEQ) in terms of requirements for the mechanical and technological properties of rolled products

5* By Order federal agency on technical regulation and metrology dated July 20, 2007 No. 186-st interstate standard GOST 535-2005 was put into effect as a national standard Russian Federation since January 1, 2008

6 INSTEAD OF GOST 535-88

7 REVISION. April 2008

Information on the entry into force (termination) of this standard is published in the index "National Standards".

Information about changes to this standard is published in the index "National standards", and the text of the changes - in the information indexes "National standards". In case of revision or cancellation of this standard, the relevant information will be published in the information index "National Standards"

©Standartinform, 2007 ©Standartinform, 2008

In the Russian Federation, this standard cannot be fully or partially reproduced, replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology

* By order of the Federal Agency for Technical Regulation and Metrology dated March 7, 2008 No. 32-st, the deadline for introducing the interstate standard GOST 535-2005 was postponed to July 1, 2008.

1 area of use............................................... ....one

3 Classification. Main parameters and dimensions....................................2

4 General technical requirements............................................3

5 Marking.............................................. .........7

6 Packing.............................................. ..........7

7 Rules for transportation and storage...............................................7

8 Rules for acceptance ............................................... ......7

9 Methods of control ............................................... ......7

Annex A (normative) Examples of symbols ............................................... 9

ISO 1052:1982 ............................................... 10

Bibliography................................................. .......12

Amendment to GOST 535-2005 Rolled bars and shapes from carbon steel of ordinary quality. General specifications

(IUS No. 6 2008)

INTERSTATE STANDARD

STYLES AND SHAPED CARBON STEEL OF ORDINARY QUALITY

General specifications

Common quality carbon steel bar and shaped sections. General specifications

Introduction date - 2008-07-01

1 area of use

This standard applies to hot-rolled sections and shaped steel for general and special purposes from carbon steel of ordinary quality.

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 4781-85 Hot-rolled steel profiles for sheet piles. Specifications GOST 5378-88 Goniometers with vernier. Specifications GOST 6507-90 Micrometers. Specifications

GOST 7268-82 Steel. Method for determining the tendency to mechanical aging by impact bending test

GOST 7502-98 Metal measuring tapes. Specifications GOST 7564-97 Rolled products. General rules for sampling, blanks and samples for mechanical and technological tests

GOST 7565-81 (ISO 377-2-89) Cast iron, steel and alloys. Sampling method for determining the chemical composition

GOST 7566-94 Steel products. Acceptance, marking, packaging, transportation and storage

GOST 8239-89 Hot-rolled steel I-beams. Assortment GOST 8240-97 Hot-rolled steel channels. Assortment GOST 8509-93 Hot-rolled steel equal-shelf angles. Assortment GOST 8510-86 Hot-rolled steel angle bars, unequal. Assortment

Official edition

GOST 9454-78 Metals. Test method for impact bending at reduced, room and

elevated temperatures

GOST 14019-2003 (ISO 7438:85) Metallic materials. Bending test method GOST 17152-89 (ISO 7129-82) Hot-rolled steel sections for earth-moving machine knives. General specifications

GOST 17745-90 Steels and alloys. Methods for determining gases

18662-83 Hot-rolled profiles SVP for lining mine workings. Range 18895-97 Steel. Method of photoelectric spectral analysis 19240-73 Rails for ground and overhead tracks. Range 19425-74 I-beams and special steel channels. Range 21026-75 Hot-rolled steel channels with bent flange for trolleys. Assortment

22536.0-87 Carbon steel and unalloyed cast iron. General requirements for methods

GOST 22536.1-88 Carbon steel and unalloyed cast iron. Methods for determining total carbon and graphite

GOST 22536.2-87 Carbon steel and unalloyed cast iron. Methods for determination of sulfur 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 determining silicon GOST 22536.5-87 (ISO 629-82) Carbon steel and unalloyed cast iron. Methods

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 determining copper GOST 22536.9-88 Carbon steel and unalloyed cast iron. Nickel determination methods GOST 22536.10-88 Carbon steel and unalloyed cast iron. Methods for determining aluminum GOST 22536.11-87 Carbon steel and unalloyed cast iron. Methods for determining titanium GOST 26020-83 Hot-rolled steel I-beams with parallel flange edges. Assortment GOST 26877-91 Steel products. Methods for measuring shape deviations GOST 27809-95 Cast iron and steel. Spectrographic analysis methods GOST 28033-89 Steel. Method of X-ray fluorescence analysis

Note - When using this standard, it is advisable to check the validity of the reference standards according to the "National Standards" index, compiled as of January 1 of the current year, and according to the corresponding information indexes published in the current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.

3 Classification. Main parameters and dimensions

3.1 Rolled products are divided into sectional and shaped.

To shaped include rolled products, in which the tangent at least at one point of the cross-sectional contour crosses this section (I-beam, channel, corner and special-purpose profiles).

3.2 Depending on the quality of the surface, the rolled products are divided into groups:

1ГП - for application without surface treatment;

2GP - for hot pressure treatment;

ZGP - for cold machining by cutting.

The group is specified in the order.

The group, if it is not specified in the order, is set by the manufacturer.

Shaped products are made only by groups of 1 GP.

3.3 In terms of shape, dimensions and maximum deviations, rolled products must comply with the requirements: GOST 103 - for strip;

GOST 2590 - for round;

GOST 2591 - for square;

GOST 2879 - for hexagonal;

GOST 4781 - for sheet piles;

GOST 8239 - for I-beams;

GOST 8240 - for channels;

GOST 8509 - for angular equal-shelf;

GOST 8510 - for angular unequal;

GOST 17152 - for profiles of knives of earth-moving machines;

GOST 18662 - for hot-rolled SVP profiles for lining mine workings;

GOST 19240 - for rails of ground and overhead tracks;

GOST 19425 - for beams and channels for special purposes;

GOST 21026 - for channels with a bent shelf for trolleys;

GOST 26020 - for I-beams with parallel flange edges and other regulatory documents approved in the prescribed manner.

3.4 Rolled products are made from steel grades: STO, St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, StZkp, StZps, StZsp, StZGps, StZGsp, St4kp, St4ps, St4sp, St5ps, St5sp, St5Gps, Stbps, Stbsp according to GOST 380.

3.4.1 Rolled products for SVP profiles for lining mine workings according to GOST 18662 are made of steel grades Stbps and Stbsp.

3.5 Depending on the normalized indicators, the rental is divided into categories: 1,2,3,4,5,6,7. The category is specified in the order.

3.6 It is allowed to manufacture rolled products from 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 The scheme of symbols for rental is given in Appendix A.

4 General technical requirements

4.1 Rolled products are manufactured in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner.

4.2 The chemical composition of steel must comply with GOST 380.

4.3 Rolled products are made in a hot-rolled state. Heat treatment can be used to provide the required properties.

Carbon equivalent (C eq) should not exceed 0.45%.

4.6 The mechanical properties of rolled products in tension, as well as the conditions for bending tests in the cold state, must comply with the standards given in table 2.

4.7 Impact strength of rolled products must comply with the standards given in table 3.

4.8 Lamination of rolled products is not allowed.

The sum of the maximum deviations of the diameter or thickness - for bars with a size of 40 mm or less;

5% of diameter or thickness - for bars larger than 40 mm up to and including 140 mm;

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

The depth of stripping or cutting is calculated from the minimum size of the rolled product.

In the cross section of rolled products with a size (diameter or thickness) of 140 mm and more, no more than two strippings of maximum depth are allowed, which should not be located on the same axis.

Table 1

steel grade	Chemical composition	Temporary resistance	Cold bend	impact strength

				At temperature, °С	aging	At temperature, °С
					aging

St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, StZkp, StZps, StZsp, St4kp, St4ps, St4sp, Stbps, Stbsp
Stbps, Stbsp
StZkp, StZps, StZsp, StZGps, St4kp, St4ps, St4sp, Stbps, Stbsp, StbG according to
StZps, StZsp, StZGpo, St4ps, St4sp
StZps, StZsp, StZGps, StZG sp

StZps, StZsp, StZG ps, StZG sp
StZps, StZsp, StZG ps, StZG sp

Notes

1 The sign "+" means that the indicator is normalized, the sign "-" means that the indicator is not normalized.

2 The chemical composition of steel according to melting analysis or in finished rolled products - in accordance with the order.

table 2

Tensile strength a, N / mm 2

(kgf/mm^), for rolled products of thickness, mm

Yield strength a t, N / mm 2 (kgf / mm 2), for rolled products of thickness, mm

Relative elongation 8 5,%, for rolled products of thickness, mm

St. 10 to 20

St. 20 to 40 incl.

St. 40 to 100 incl.

St. 20 to 40 incl.

up to 10 incl.

At least 300 (31)

End of table 2

Tensile strength a, N / mm 2 (kgf / mm 2), for rolled products of thickness, mm

Yield strength a, N / mm 2 (kgf / mm 2), for rolled products of thickness, mm

Relative elongation S 5 , %, for rolled products of thickness, mm

Bending until the sides are parallel (a - sample thickness, d - mandrel diameter), for rolled thicknesses, mm

St. 10 to 20

St. 20 to 40 incl.

St. 40 to 100 incl.

St. 20 to 40 incl.

up to 10 incl.

Not less than 590 (60)

Notes

1 By agreement between the manufacturer and the consumer, it is allowed:

Reducing the yield strength by 10 N / mm 2 (1 kgf / mm 2) for shaped steel with a thickness of more than 20 mm;

Reduction in relative elongation by 1% (abs.) for shaped steel of all thicknesses.

2 It is allowed to exceed the upper limit of temporary resistance by 49.0 N / mm 2 (5 kgf / mm 2), and in agreement with the consumer - without limiting the upper limit of temporary resistance, provided that other standards are met. At the request of the consumer, exceeding the upper limit of temporary resistance is not allowed.

Table 3

End of table 3

Notes

1 The “-” sign means that the indicator is not standardized.

2 Determination of the impact strength of rolled products of round section is carried out starting from a diameter of 12 mm, square - starting from the side of a square of 11 mm.

3 It is allowed to reduce the value of impact strength on one sample by 30%, while the average value should not be lower than the standards indicated in this table.

4 Impact strength KCV is determined for rolled products up to and including 20 mm thick.