ASTM A1077/A1077M-21

Standard Specification for Structural Steel with Improved Yield Strength at High Temperature for Use in Buildings

SCOPE
1.1 This specification covers alloy steel in bars, plates up to and including 4 in. [100 mm] in thickness and shapes of structural quality with improved yield strength at high temperature. Two grades, 36 [250] and 50 [345] are available for use in bolted or welded buildings or for general structural purposes. Class 2 requires a maximum yield to tensile ratio – this ratio is not required for Class 1.  
1.2 When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service is to be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.  
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining values in any way.  
1.4 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.  
1.5 For structural products produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A6/A6M apply.  
1.6 Supplementary requirements are provided for use where additional testing or additional restrictions are required by the purchaser. Such requirements apply only when specified in the purchase order.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Aug-2021
• ICS: 77.140.20 - Stainless steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.02 - Structural Steel for Bridges, Buildings, Rolling Stock and Ships

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A1077/A1077M −21
Standard Specification for
Structural Steel with Improved Yield Strength at High
1
Temperature for Use in Buildings
This standard is issued under the fixed designation A1077/A1077M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers alloy steel in bars, plates up to
Barriers to Trade (TBT) Committee.
and including 4 in. [100 mm] in thickness and shapes of
structural quality with improved yield strength at high tem-
2. Referenced Documents
perature. Two grades, 36 [250] and 50 [345] are available for
2
2.1 ASTM Standards:
use in bolted or welded buildings or for general structural
A6/A6M Specification for General Requirements for Rolled
purposes. Class 2 requires a maximum yield to tensile ratio –
Structural Steel Bars, Plates, Shapes, and Sheet Piling
this ratio is not required for Class 1.
A370 Test Methods and Definitions for Mechanical Testing
1.2 When the steel is to be welded, a welding procedure
of Steel Products
suitable for the grade of steel and intended use or service is to
A673/A673M Specification for Sampling Procedure for Im-
be utilized. See Appendix X3 of Specification A6/A6M for
pact Testing of Structural Steel
information on weldability.
A770/A770M Specification for Through-Thickness Tension
1.3 The values stated in either inch-pound units or SI units
Testing of Steel Plates for Special Applications
are to be regarded separately as standard. Within the text, the
E8/E8M Test Methods for Tension Testing of Metallic Ma-
SI units are shown in brackets. The values stated in each
terials
system are not exact equivalents; therefore, each system is to
E21 TestMethodsforElevatedTemperatureTensionTestsof
be used independently of the other, without combining values
Metallic Materials
in any way.
3. General Requirements for Delivery
1.4 Thetextofthisspecificationcontainsnotesorfootnotes,
3.1 Products furnished under this specification shall con-
or both, that provide explanatory material. Such notes and
form to the requirements of the current edition of Specification
footnotes, excluding those in tables and figures, do not contain
A6/A6M, for the specific structural product ordered, unless a
any mandatory requirements.
conflict exists in which case this specification shall prevail.
1.5 For structural products produced from coil and fur-
3.2 Coils are excluded from qualification to this specifica-
nished without heat treatment or with stress relieving only, the
tion until they are processed into a finished structural product.
additional requirements, including additional testing require-
Structural products produced from coil means structural prod-
ments and the reporting of additional test results, of Specifi-
ucts that have been cut to individual lengths from a coil. The
cation A6/A6M apply.
processor directly controls, or is responsible for, the operations
1.6 Supplementary requirements are provided for use where
involved in the processing of a coil into a finished structural
additional testing or additional restrictions are required by the
product. Such operations include decoiling, leveling or
purchaser. Such requirements apply only when specified in the
straightening, hot-forming or cold-forming (if applicable),
purchase order.
cutting to length, testing, inspection, conditioning, heat treat-
1.7 This international standard was developed in accor-
ment(ifapplicable),packaging,marking,loadingforshipment,
dance with internationally recognized principles on standard-
and certification.
ization established in the Decision on Principles for the
NOTE 1—For structural products produced from coil and furnished
without heat treatment or with stress relieving only, two test results are to
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
2
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2021. Published September 2021. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 2012. Last previous edition approved in 2014 as A1077/A1077M – 14. Standards volume information, refer to the standard’s Document S
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A1077/A1077M − 14 A1077/A1077M − 21
Standard Specification for
Structural Steel with Improved Yield Strength at High
1
Temperature for Use in Buildings
This standard is issued under the fixed designation A1077/A1077M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers alloy steel in bars, plates up to and including 4 in. [100 mm] in thickness and shapes of structural
quality with improved yield strength at high temperature. Two grades, 36 [250] and 50 [345] are available for use in bolted or
welded buildings or for general structural purposes. Class 2 requires a maximum yield to tensile ratio – this ratio is not required
for Class 1.
1.2 When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service is to be utilized.
See Appendix X3 of Specification A6/A6M for information on weldability.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units
are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system is to be used
independently of the other, without combining values in any way.
1.4 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes,
excluding those in tables and figures, do not contain any mandatory requirements.
1.5 For structural products produced from coil and furnished without heat treatment or with stress relieving only, the additional
requirements, including additional testing requirements and the reporting of additional test results, of Specification A6/A6M apply.
1.6 Supplementary requirements are provided for use where additional testing or additional restrictions are required by the
purchaser. Such requirements apply only when specified in the purchase order.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.02
on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Oct. 1, 2014Sept. 1, 2021. Published October 2014September 2021. Originally approved in 2012. Last previous edition approved in 20122014
as A1077A1077/A1077M – 12.14. DOI: 10.1520/A1077_A1077M-14.10.1520/A1077_A1077M-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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A1077/A1077M − 21
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A673/A673M Specification for Sampling Procedure for Impact Testing of Structural Steel
A770/A770M Specification for Through-Thickness Tension Testing of Steel Plates for Special Applications
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials
3. General Requirements for Delivery
3.1 Products furnished under this specification shall conform to the requirements of the current edition of Specification A6/A6M,
for the specific structural product ordered, unless a conflict exists in which case this specification shall prevail.
3.2 Coils are excluded from qualification to this specification until they are processed into a finished structural product. Structural
products produced from coil means structural products that have been cut to individual leng
...