GOST 380-2005

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  ГОСТ 380-2005

GOST 380−2005 carbon Steel of ordinary quality. Stamps (Change No. 1)

GOST 380−2005

Group B20

INTERSTATE STANDARD

CARBON STEEL OF ORDINARY QUALITY

Brand

Common quality carbon steel. Grades

ISS 77.080.20
OKP 08 7010

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"

Data on standard

1 DEVELOPED by the research Institute «Ukrniimet» Ukrainian state scientific and technical center «Energostal»; the 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:

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) as part of the requirements for the chemical composition of the steel

5* the Order of the Federal Agency for technical regulation and Metrology dated 20 July 2007 N 185-St interstate standard GOST 380−2005 introduced as a national standard of the Russian Federation from January 1, 2008
________________
* By order of the Federal Agency for technical regulation and Metrology dated 7 March 2008 N 33-St the introduction of the interstate standard GOST 380−2005 postponed to July 1, 2008.

6 REPLACE GOST 380−94

7 EDITION (September 2009) — amended (8−2008).


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»


The Change N 1, approved and promulgated by the Order of Rosstandart on 29.12.2015 N 2206-St c 01.04.2016

Change No. 1 made by the manufacturer of the database in the text IUS N 4, 2016

1 Scope

This standard applies to carbon steel of common quality, intended for the manufacture of hot-rolled: graded, shaped, plate, sheet, cold-rolled sheet and broadband, as well as ingots, blooms, slabs, sotunki, billets, rolled and casted, pipes, forgings and stampings, ribbons, wire, hardware, etc.

2 Normative references

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

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

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

GOST 18895−97 Steel. Method of photoelectric spectral analysis

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 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 steel grade

3.1 Carbon steel of ordinary quality produce following brands: St0, St1kp, St1ps, St1sp, St2kp, St2ps, St2sp, St3kp, St3ps, st3sp, St3gps, St3gsp, St4kp, St4ps, St4sp, St5ps, St5sp, St5gps, St6ps, St6sp.

The letters «St» indicate «Steel», numbers — conditional room brand depending on the chemical composition, the letter «G» — manganese at its mass fraction in steel 0,80% or more, the letters «KP», «PS», «SP» — the degree of deoxidation of steel: «KP» — boiling, «PS» is semi-killed, «SP» Goodnight.

3.2 Comparison of steel grades according to this standard and the international ISO standards ISO 630 and 1052 are given in Appendix A.

3.3 requirements for the chemical composition of the 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 the international standards ISO 630 [1] and ISO 1052 [2] is given in Appendix B.

3.4 the Degree of deoxidation, if it is not specified in the order, established by the manufacturer.

4 Requirements for the chemical composition of the steel

4.1 Chemical composition of steel (main elements) for the analysis of ladle samples must conform to the standards specified in table 1.


Table 1

Percentage

4.2 allowed the manufacture of steel of all grades, in addition to intended for rental, used in shipbuilding and car building, without limiting the lower limit of the mass fraction of carbon and manganese, provided that the required level of mechanical properties.

In steel grades St2kp, St3kp and St4kp intended for the production of long products and structural shapes, a higher mass fraction of silicon to 0.07%.

(Changed edition, Rev. N 1).

4.3 deoxidation semi-killed steel aluminum, titanium or other scavengers that do not contain silicon, and several deoxidants (ferrosilicon and aluminum, ferrosilicon and titanium, etc.) mass fraction of silicon in the steel is allowed less than 0.05%. The deoxidation of titanium, aluminum and other deoxidants that do not contain silicon, indicate in the document about quality.

4.4 Mass fraction of chromium, Nickel and copper in steel of all grades, except St0 must be not more than 0.30% each. In steel grade St0 mass fraction of chromium, Nickel and copper not regulated.

In steel, made a scrapbook process allowed the mass fraction of copper to 0.40%, chromium and Nickel, up to 0.35% of each. While the steel grades St3kp, St3ps, st3sp, and St3gps St3gsp mass fraction of carbon should be not more than 0.20%.

4.5 Mass fraction of sulfur in steel of all grades, in addition to the St0, must not exceed 0,050%, phosphorus not more than 0,040%. In steel grade St0 mass fraction of sulfur should be no more than 0,060%, phosphorus — not more than 0,070%.

4.6 Mass fraction of nitrogen in the steel should be not more than:

— smelted in electric furnaces to 0.012%;

— open-hearth and Converter — 0,010%.

A higher mass fraction of nitrogen in steel up to 0,013%, subject to reduction of the threshold mass fraction of phosphorus at 4.5 not less than 0.005% of each increase of the mass fraction of nitrogen of 0.001%.

4.7 Mass fraction of arsenic in steel of all grades, except St0 must be not more than 0,080%. Mass fraction of arsenic in steel grade St0 is not standardized.

4.8 maximum deviations in chemical composition of finished steel, ingots, billets, forgings and products further processing must conform to the standards specified in table 2.


Table 2

Percentage

Note — For chemical elements, the mass fraction which according to 4.2 restricted to the upper limit, use a positive limit deviation.


(Amendment); (Revised edition, Edit. N 1).

5 control Methods

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

5.2 Chemical analysis of steel — GOST 12359, 17745 GOST, GOST 18895, GOST 22536.0 to GOST 22536.11, GOST 27809, GOST 28033 or other methods approved in the established procedure and ensuring necessary precision.

If there is disagreement between the manufacturer and the consumer evaluation was carried out methods of control under this standard.

5.3 determination of the mass fraction of chromium, Nickel, copper, arsenic, nitrogen, and boiling steel silicon also allowed not to perform under the condition of guarantees of standards by the manufacturer.

6 Marking

6.1 Labeling of products from commercial quality carbon steel is carried out according to the normative documents for a specific kind of product with the requirements of GOST 7566.

At the request of the consumer or in the presence of normative documents on rental requirements for colour marking her further applied with indelible paint colors are listed in table 3.


Table 3

Annex a (informative). Designation of steel grades according to this standard and the international standards ISO 630:1995, ISO 1052:1982

Appendix A
(reference)

Table A. 1

Appendix B (recommended). Requirements for steel according to international standards ISO 630:1995, ISO 1052:1982

Appendix B
(recommended)

B. 1 Chemical composition of steel by ladle sample analysis must conform to the standards given in table B. 1


Table B. 1

B. 2 Steel grades Fe 490 Fe 590 Fe 690 and produce balanced and calm.

B. 3 Limit deviations of chemical composition in ready rental shall be as given in table B. 2.

Table B. 2

Percentage

Bibliography