ASTM A1043/A1043M-18
(Specification)Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
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
Relations
Buy Standard
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:A1043/A1043M −18
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* 2. Referenced Documents
2
1.1 This specification covers two grades, 36 [250] and 50 2.1 ASTM Standards:
[345] of rolled steel structural shapes and plates with low yield A6/A6M Specification for General Requirements for Rolled
to tensile ratio for use in building framing or for general Structural Steel Bars, Plates, Shapes, and Sheet Piling
structural purposes. A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
1.2 All shape profiles with a flange width of 6 in. [150 mm]
A673/A673M Specification for Sampling Procedure for Im-
andgreaterdescribedinSpecificationA6/A6M,AnnexA2,and
pact Testing of Structural Steel
plates up to and including 5 in. [125 mm] thick are included in
A770/A770M Specification for Through-Thickness Tension
this specification.
Testing of Steel Plates for Special Applications
1.3 Supplementary requirements are provided for use where
additional testing or additional restrictions are required by the 3. General Requirements for Delivery
purchaser. Such requirements apply only when specified in the
3.1 Product furnished under this specification shall conform
purchase order.
to the requirements of the current edition of Specification
1.4 When the steel is to be welded, a welding procedure A6/A6M for the ordered product, unless a conflict exists, in
which case this specification shall prevail.
suitable for the grade of steel and intended use or service is to
be utilized. See Appendix X3 of Specification A6/A6M for
4. Materials and Manufacture
information on weldability.
4.1 The steel shall be killed, and such shall be affirmed in
1.5 The text of this specification contains notes or footnotes,
the test report by a statement of killed steel, a value of 0.10 %
or both, that provide explanatory material; such notes and
or more for the silicon content, a value of 0.015 % or more for
footnotes, excluding those in tables and figures, do not contain
the total aluminum content, or a value of 0.006 % or more for
any mandatory requirements.
the titanium content.
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. Chemical Composition
SI units are shown in brackets. The values stated in each
5.1 The heat analysis shall conform to the requirements
system may not be exact equivalents; therefore, each system
given in Table 1.
shall be used independently of the other. Combining values
5.2 The steel shall conform on product analysis to the
from the two systems may result in nonconformance with the
requirements given in Table 1, subject to the product analysis
standard.
tolerances in Specification A6/A6M.
1.7 This international standard was developed in accor-
5.3 The maximum permissible carbon equivalent values
dance with internationally recognized principles on standard-
shall be:
ization established in the Decision on Principles for the
Thickness of Plate
Development of International Standards, Guides and Recom-
Grade CE Value max %
and Shape Flange
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
36 [250] All 0.37
50 [345] #2 in. [50 mm] 0.45
50 [345] >2 in. [50 mm] 0.47
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 Nov. 1, 2018. Published November 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2005. Last previous edition approved in 2014 as A1043/A1043M – 14. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A1043_A1043M-18. 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
---------------------- Page: 1 ----------------------
A1043/A1043M−18
A
TABLE 1 Chemical Requirements (Heat Analysis) TABLE 2 Tensile Requirements
Grade
Composition,
...
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 − 14 A1043/A1043M − 18
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*
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 aremay not be exact equivalents; therefore, each system is to shall be used
independently of the other without combining values in any way.other. Combining values from the two systems may result in
nonconformance with the standard.
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
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.
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, 2014Nov. 1, 2018. Published October 20014November 2018. Originally approved in 2005. Last previous edition approved in 20092014
as A1043/A1043M – 05 (2009).A1043/A1043M – 14. DOI: 10.1520/A1043_A1043M-14.10.1520/A1043_A1043M-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. 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
---------------------- Page: 1 ----------------------
A1043/A1043M − 18
TABLE 1 Chemical Requirements (Heat Analysis)
Composition, %
Element
Grade Grade
36 [250] 50 [345]
Carbon, max 2 in. [50 mm] and less in thickness 0.20 0.20
Over 2 in. [50 mm] in thickness 0.22 0.22
Manganese 0.50–1.40 0.50–1.60
Phosphorus, max 0.030 0.030
Sul
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.