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ASTM A1043.pdf
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ASTM A1043.pdf
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Designation: A 1043/A 1043M – 05
Standard Specification for
Structural Steel with Low Yield to Tensile Ratio for Use in
Buildings
1
This standard is issued under the fixed designation A 1043/A 1043M; 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 (e) 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
A 6/A 6M 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
A 6/A 6M for
information on weldability.
1.5 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.
1.6 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.
2. Referenced Documents
2.1 ASTM Standards:
2
A 6/A 6M Specification for General Requirements for
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
Piling
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 673/A 673M Specification for Sampling Procedure for
Impact Testing of Structural Steel
A 770/A 770M Specification for Through-Thickness Ten-
sion 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
A 6/A 6M 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
A 6/A 6M.
5.3 The maximum permissible carbon equivalent values
shall be:
Grade
Thickness of Plate
and Shape Flange
CE Value max %
36 [250] All 0.37
50 [345] # 2 in. [50 mm] 0.45
50 [345] > 2 in. [50 mm] 0.47
5.3.1 The carbon equivalent value shall be based upon heat
analysis. The required chemical analysis as well as the carbon
equivalent shall be reported. The carbon equivalent shall be
calculated using the following formula:
CE 5 C 1
~
Mn
!
/6 1
~
Cr 1 Mo 1 V
!
/5 1
~
Ni 1 Cu
!
/15 (1)
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 April 1, 2005. Published April 2005.
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’s Document Summary page on
the ASTM website.
1
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
Copyright by ASTM Int'l (all rights reserved);
Reproduction authorized per License Agreement with Kathe Hooper (ASTMIHS Account); Mon Apr 18 14:15:42 EDT 2005
Copyright ASTM International
Reproduced by IHS under license with ASTM
Not for Resale
No reproduction or networking permitted without license from IHS
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