ASTM A1043/A1043M-05

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 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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2005
• 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

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

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 – 05
Standard Specification for
Structural Steel with Low Yield to Tensile Ratio for Use in
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
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 SpecificationforGeneralRequirementsforRolled
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
1.2 All shape profiles with a flange width of 6 in. [150 mm] of Steel Products
and greater described in Specification A6/A6M Annex A2 and A673/A673M Specification for Sampling Procedure for
plates up to and including 5 in. [125 mm] thick are included in Impact Testing of Structural Steel
this specification. A770/A770M Specification for Through-Thickness Tension
1.3 Supplementary requirements are provided for use where Testing of Steel Plates for Special Applications
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.
1.4 When the steel is to be welded, a welding procedure to the requirements of the current edition of Specification
A6/A6M for the ordered product, unless a conflict exists, in
suitable for the grade of steel and intended use or service is to
be utilized. See Appendix X3 of Specification A6/A6M for which case this specification shall prevail.
information on weldability.
4. Materials and Manufacture
1.5 The values stated in either inch-pound units or SI units
4.1 The steel shall be killed, and such shall be affirmed in
are to be regarded separately as standard. Within the text, the
the test report by a statement of killed steel, a value of 0.10 %
SI units are shown in brackets. The values stated in each
or more for the silicon content, a value of 0.015 % or more for
system are not exact equivalents; therefore, each system is to
the total aluminum content, or a value of 0.006 % or more for
beusedindependentlyoftheotherwithoutcombiningvaluesin
the titanium content.
any way.
1.6 The text of this specification contains notes or footnotes,
5. Chemical Composition
or both, that provide explanatory material; such notes and
5.1 The heat analysis shall conform to the requirements
footnotes, excluding those in tables and figures, do not contain
given in Table 1.
any mandatory requirements.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved April 1, 2005. Published April 2005. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
A1043_A1043M-05. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A1043/A1043M – 05
TABLE 1 Chemical Requirements (Heat Analysis)
6. Tensile Requirements
Composition, %
6.1 The product as represented by the test specimens shall
Element Grade Grade
conform to the requirements for tensile properties given in
36 [250] 50 [345]
Table 2.
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
7. Charpy Impact Requirements
Manganese 0.50–1.40 0.50–1.60
Phosphorus, max 0.035 0.035
7.1 Charpy V-notch tests shall be conducted in accordance
Sulfur, max 0.045 0.045
with SpecificationA673/A673M, frequency H. The test results
Silicon, max 0.35 0.55
for full-size test specimens shall conform to the following
Nitrogen, max 0.012 0.012
Nickel, max 0.45 0.45
minimum average value for Grades 36 [250] and 50 [345]:
Chromium, max 0.35 0.35
40 ft·lbf [54 J] at 70°F [21°C]
Molybdenum, max 0.15 0.15
Copper, max 0.50 0.50
or a lower test temperature as specified in the purchase order.
A A
Vanadium, max 0.15 0.15
A A
Columbium, max 0.05 0.05
7.2 For shapes with a flange thickness equal to or greater
Titanium, max 0.03 0.03
than 1 ⁄2 in. [38.1 mm] the test specimens shall be taken from
A
The sum of columbium and vanadium shall not exceed 0.15 %.
the Alternate Core Location as defined in Specification A673/
A673M.
8. Keywords
5.2 The steel shall conform on produ
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