GOST 30245-2012

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  ГОСТ 30245-2012

GOST 30245−2012 Profiles steel bent closed welded square and rectangular for building structures. Technical specifications (with Amendment)

GOST 30245−2012

INTERSTATE STANDARD

STEEL BENT CLOSED WELDED SQUARE AND RECTANGULAR FOR BUILDING STRUCTURES

Specifications

Steel bent closed welded square and rectangular section for building. Specifications

ISS 77.140.70

Date of introduction 2016−01−01*
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Date of introduction in action is postponed on 2017−01−01. -
Cm. the label «notes"

Preface

Goals, basic principles and main procedure of works on interstate standardization are set forth in GOST 1.092* «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, application, renewal and cancellation»

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* Probably, the error of the original. Should read: GOST 1.0−92. — Note the manufacturer’s database.

Data on standard

1 DEVELOPED by Closed joint stock company «Central order of Labor red banner scientific-research and design Institute of metal construction to them.N. P. Melnikov» (CJSC «TsNIIPSK them. Melnikov)

2 SUBMITTED by the Technical Committee for standardization TC 465 «Construction"

3 ACCEPTED by the Interstate scientific and technical Commission on standardization, technical regulation and conformity assessment in construction (MNTKS) (minutes of 18 December 2012 No. 41)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology from 06 March 2014 N 91st St interstate standard GOST 30245−2012 introduced as a national standard of the Russian Federation from October, 01, 2014

By order of the Federal Agency for technical regulation and Metrology dated 30 September 2014 N 1263-St date of the enactment of the interstate standard GOST 30245−2012 for voluntary application in the Russian Federation moved from 01 Oct 2014 to 01 Jan 2016

5 REPLACE GOST 30245−2003


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


AMENDED, published in the IUS N 4, 2017

An amendment made by the manufacturer of the database

Introduction

This standard is designed instead an interstate standard GOST 30245−2003c using domestic and foreign experience in the use of closed roll-formed shapes of rectangular and square section.

Compared to GOST 30245−2003 in this standard:

— introduced a classification of profiles according to the classes strength, cold resistance and resistance to corrosion;

— to expand the assortment of pipes: overall dimensions of a profile to 500x500 mm for square profiles, 500x300 mm for rectangular sections and wall thickness — up to 22.0 mm;

— additionally, the possibility of production of pipes with the definition of carbon equivalent, with purified from the slag surface, with a temporary preservative coating.

1 Scope

This standard applies to steel bent closed welded square and rectangular profiles, then profiles intended for structural steelwork.

Profiles are produced from rolled sheet metal by forming it in specialized mills circular hollow sections with a longitudinal weld and subsequent compression rolls in a square or rectangular profile made of carbon and low-alloy steel obtained by the method of electric arc or melting of the Converter with secondary processing, ensuring the modification of nonmetallic inclusions.

2 Normative references

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

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

GOST 427−75 Rulers measuring metal. Specifications

GOST 1050−88 hire gauged bars with special surface finishing of carbon structural quality steel. General specifications

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

GOST 5264−80 Manual arc welding. Welded connections. Main types, design elements and dimensions

GOST 5378−88 Protractors with Vernier. Specifications

GOST 6507−90 Micrometers. Specifications

GOST 6996−66 Welded joints. Methods for determining the mechanical properties

GOST 7502−98 metallic measuring tape. Specifications

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

GOST 7661−67 depth gauges indicator. Specifications

GOST 8026−92 Line calibration. Specifications

GOST 8713−79 submerged-arc welding. Welded connections. Main types, design elements and dimensions

GOST 9454−78 Metals. Methods of test for impact strength at low, room and elevated temperatures

GOST 11358−89 Thickness and stenkomer indicator with a scale division of 0.01 and 0.1 mm. specifications

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

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

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

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

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

GOST 12349−83 Steel alloyed and high alloy. Methods for determination of tungsten

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

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

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

GOST 12353−78 Steel alloyed and high alloy. Methods for determination of cobalt

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

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

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

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

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

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

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

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

GOST 12362−79 Steel alloyed and high alloy. Methods for determination of trace antimony, lead, tin, zinc and cadmium

GOST 12363−79 Steel alloyed and high alloy. Methods for determination of selenium

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

GOST 12365−84 Steel alloyed and high alloy. Methods for determination of zirconium

GOST 14350−80 roll-formed sections. Terms and definitions

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

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

GOST 16523−97 rolled sheets from carbon steel quality and common quality of General purpose. Specifications

GOST 17066−94 rolled sheets from high-strength steel. Specifications

GOST 18895−97 Steel. Method of photoelectric spectral analysis

GOST 19903−74 hot-rolled steel sheets. Assortment

GOST 19281−89 (ISO 4950−2-81, ISO 4950−3-81, ISO 4951−79, ISO 4955−78, ISO 4996−78, ISO 5952−83) rolled steel with increased strength. General specifications

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

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

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

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

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

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

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

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

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

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

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

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

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

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

GOST 27772−88 rolled products for structural steel constructions. General specifications

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

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

3 Terms and definitions

This standard applies the terminology according to GOST 14350 and applicable regulatory documents.
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* On the territory of the Russian Federation GOST R 54157−2010.

4 Assortment

4.1 Cross-section profiles must match what is specified: figure 1 for square profiles and in figure 2 for rectangular sections.

Figure 1 and 2. Cross-section profiles

4.2 the dimensions of the profiles, the cross-sectional area reference values for the axes and mass of 1 m of the profile should match: for square profiles in figure 1 and in table 1, for rectangular profile figure 2 and table 2.


Table 1