ASTM A1043/A1043M-14

Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings

SCOPE
1.1 This specification covers two grades, 36 [250] and 50 [345] of rolled steel structural shapes and plates with low yield to tensile ratio for use in building framing or for general structural purposes.  
1.2 All shape profiles with a flange width of 6 in. [150 mm] and greater described in Specification A6/A6M, Annex A2, and plates up to and including 5 in. [125 mm] thick are included in this specification.  
1.3 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.  
1.4 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.  
1.5 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.  
1.6 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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2014
• ICS: 91.080.10 - Metal structures
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.02 - Structural Steel for Bridges, Buildings, Rolling Stock and Ships

Relations

• Replaces: ASTM A1043/A1043M-05(2009) - Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
• Effective Date: 01-Oct-2014
• Replaced By: ASTM A1043/A1043M-18 - Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
• Effective Date: 01-Nov-2018

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:A1043/A1043M −14
Standard Specification for
Structural Steel with Low Yield to Tensile Ratio for Use in
1
Buildings
This standard is issued under the fixed designation A1043/A1043M; 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* Structural Steel Bars, Plates, Shapes, and Sheet Piling
A370 Test Methods and Definitions for Mechanical Testing
1.1 This specification covers two grades, 36 [250] and 50
of Steel Products
[345] of rolled steel structural shapes and plates with low yield
A673/A673M Specification for Sampling Procedure for Im-
to tensile ratio for use in building framing or for general
pact Testing of Structural Steel
structural purposes.
A770/A770M Specification for Through-Thickness Tension
1.2 All shape profiles with a flange width of 6 in. [150 mm]
Testing of Steel Plates for Special Applications
andgreaterdescribedinSpecificationA6/A6M,AnnexA2,and
plates up to and including 5 in. [125 mm] thick are included in
3. General Requirements for Delivery
this specification.
3.1 Product furnished under this specification shall conform
1.3 Supplementary requirements are provided for use where
to the requirements of the current edition of Specification
additional testing or additional restrictions are required by the
purchaser. Such requirements apply only when specified in the A6/A6M for the ordered product, unless a conflict exists, in
purchase order. which case this specification shall prevail.
1.4 When the steel is to be welded, a welding procedure
4. Materials and Manufacture
suitable for the grade of steel and intended use or service is to
be utilized. See Appendix X3 of Specification A6/A6M for
4.1 The steel shall be killed, and such shall be affirmed in
information on weldability.
the test report by a statement of killed steel, a value of 0.10 %
1.5 The text of this specification contains notes or footnotes,
or more for the silicon content, a value of 0.015 % or more for
or both, that provide explanatory material; such notes and
the total aluminum content, or a value of 0.006 % or more for
footnotes, excluding those in tables and figures, do not contain
the titanium content.
any mandatory requirements.
5. Chemical Composition
1.6 The values stated in either inch-pound units or SI units
are to be regarded separately as standard. Within the text, the
5.1 The heat analysis shall conform to the requirements
SI units are shown in brackets. The values stated in each
given in Table 1.
system are not exact equivalents; therefore, each system is to
beusedindependentlyoftheotherwithoutcombiningvaluesin
5.2 The steel shall conform on product analysis to the
any way.
requirements given in Table 1, subject to the product analysis
tolerances in Specification A6/A6M.
2. Referenced Documents
2 5.3 The maximum permissible carbon equivalent values
2.1 ASTM Standards:
shall be:
A6/A6M Specification for General Requirements for Rolled
Thickness of Plate
Grade CE Value max %
and Shape Flange
36 [250] All 0.37
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
50 [345] # 2 in. [50 mm] 0.45
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
50 [345] > 2 in. [50 mm] 0.47
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Oct. 1, 2014. Published October 20014. Originally
5.3.1 The carbon equivalent value shall be based upon heat
approved in 2005. Last previous edition approved in 2009 as A1043/A1043M – 05
analysis. The required chemical analysis as well as the carbon
(2009). DOI: 10.1520/A1043_A1043M-14.
2
equivalent shall be reported. The carbon equivalent shall be
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
calculated using the following formula:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. CE 5 C1 Mn /61 Cr1Mo1V /51 Ni1Cu /15 (1)
~ ! ~ ! ~ !
*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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A1043/A1043M−14
A
TABLE 1 Chemical Requirements (Heat Analysis) TABLE 2 Tensile Requirements
Grade
Composition, %
36 [250] 50 [345]
Element
Grade Grade
Tensile strength, min, ksi [MPa] 58 [400] 65 [450]
36 [250] 50 [345]
Yield point, ksi [MPa] 36 to 52 50 to 65
Carbon, max 2 in. [50 mm] and less in thickness 0.20 0.20
[250 to 360] [345 to 450]
Over 2 in. [50 mm] in thickne
...

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: A1043/A1043M − 05 (Reapproved 2009) A1043/A1043M − 14
Standard Specification for
Structural Steel with Low Yield to Tensile Ratio for Use in
1
Buildings
This standard is issued under the fixed designation A1043/A1043M; 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 Scope*
1.1 This specification covers two grades, 36 [250] and 50 [345] of rolled steel structural shapes and plates with low yield to
tensile ratio for use in building framing or for general structural purposes.
1.2 All shape profiles with a flange width of 6 in. [150 mm] and greater described in Specification A6/A6M, Annex A2, and
plates up to and including 5 in. [125 mm] thick are included in this specification.
1.3 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.
1.4 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.
1.5 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.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
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
3. General Requirements for Delivery
3.1 Product furnished under this specification shall conform to the requirements of the current edition of Specification A6/A6M
for the ordered product, unless a conflict exists, in which case this specification shall prevail.
4. Materials and Manufacture
4.1 The steel shall be killed, and such shall be affirmed in the test report by a statement of killed steel, a value of 0.10 % or more
for the silicon content, a value of 0.015 % or more for the total aluminum content, or a value of 0.006 % or more for the titanium
content.
5. Chemical Composition
5.1 The heat analysis shall conform to the requirements given in Table 1.
5.2 The steel shall conform on product analysis to the requirements given in Table 1, subject to the product analysis tolerances
in Specification A6/A6M.
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, 2009Oct. 1, 2014. Published December 2009October 20014. Originally approved in 2005. Last previous edition approved in 20052009
as A1043/A1043M – 05.A1043/A1043M – 05 (2009). DOI: 10.1520/A1043_A1043M-05R09.10.1520/A1043_A1043M-14.
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’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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A1043/A1043M − 14
TABLE 1 Chemical Requirements (Heat Analysis)
colname="col2" colwidth="1.64in"> colname="col3"
Composition, %
colwidth="0.50in"> colname="col4" colwidth="0.52in">
Element Grade Grade
36 [250] 50 [345]
Carbon, max 2 in. [50 mm] and 0.20 0.20
less in thickness
Over 2 in. [50 0.22 0.22
mm] in thickness
Manganese 0.50–1.40 0.50–1.60
Phosphorus, max 0.035 0.035
Sulfur, max 0.045 0.045
Silicon, max 0.35 0.55
Nitrogen, max
...