ASTM A992/A992M-06
(Specification)Standard Specification for Structural Steel Shapes
Standard Specification for Structural Steel Shapes
SCOPE
1.1 This specification covers rolled steel structural shapes for use in building framing or bridges, or for general structural purposes.
1.2 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.
1.3 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.
1.4 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.
1.5 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.
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Designation: A 992/A 992M – 06
Standard Specification for
1
Structural Steel Shapes
This standard is issued under the fixed designationA 992/A992M; 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* A 6/A 6M for the ordered material, unless a conflict exists, in
which case this specification shall prevail.
1.1 This specification covers rolled steel structural shapes
for use in building framing or bridges, or for general structural
4. Materials and Manufacture
purposes.
4.1 The steel shall be killed, and such shall be affirmed in
1.2 Supplementary requirements are provided for use where
the test report by a statement of killed steel, a value of 0.10 %
additional testing or additional restrictions are required by the
or more for the silicon content, or a value of 0.015 % or more
purchaser. Such requirements apply only when specified in the
for the total aluminum content.
purchase order.
4.2 The steelmaking practice used shall be one that pro-
1.3 When the steel is to be welded, a welding procedure
duces steel having a nitrogen content not greater than 0.015 %
suitable for the grade of steel and intended use or service is to
and includes the addition of one or more nitrogen-binding
be utilized. See Appendix X3 of Specification A 6/A 6M for
elements, or one that produces steel having a nitrogen content
information on weldability.
not greater than 0.012 % (with or without the addition of
1.4 The values stated in either inch-pound units or SI units
nitrogen-binding elements). The nitrogen content need not be
are to be regarded separately as standard. Within the text, the
reported, regardless of which steelmaking practice was used.
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system is to
5. Chemical Composition
beusedindependentlyoftheotherwithoutcombiningvaluesin
5.1 The heat analysis shall conform to the requirements in
any way.
Table 1.
1.5 Thetextofthisspecificationcontainsnotesorfootnotes,
5.2 In addition to the elements listed in Table 1, test reports
or both, that provide explanatory material; such notes and
shall include, for information, the chemical analysis for tin.
footnotes, excluding those in tables and figures, do not contain
Where the amount of tin is less than 0.02 %, it shall be
any mandatory requirements.
permissible for the analysis to be reported as “< 0.02 %.”
2. Referenced Documents 5.3 The steel shall conform on product analysis to the
2 requirements prescribed in Table 1, subject to the product
2.1 ASTM Standards:
analysis tolerances in Specification A 6/A 6M.
A 6/A 6M Specification for General Requirements for
5.4 Themaximumpermissiblecarbonequivalentvalueshall
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
be 0.47 % for shapes with flange thickness over 2 in. [50 mm],
Piling
and 0.45 % in other shapes. The carbon equivalent value shall
3. General Requirements For Delivery be based on heat analysis. The required chemical analysis as
well as the carbon equivalent shall be reported. The carbon
3.1 Material furnished under this specification shall con-
equivalent shall be calculated using the following formula:
form to the requirements of the current edition of Specification
CE 5 C1~Mn!/6 1~Cr 1 Mo 1 V!/51~Ni1 Cu!/15 (1)
6. Tensile Requirements
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
6.1 The material as represented by the test specimens shall
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
conformtotherequirementsfortensilepropertiesprescribedin
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock, and Ships.
Current edition approved March 15, 2006. Published March 2006. Originally Table 2.
approved in 1998. Last previous edition approved in 2004 asA992/A992M – 04a.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7. Keywords
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 bridges; building framing; shapes; structural steel;
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. welded construction
*ASummary 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.
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A 992/A 992M – 06
TABLE 1 Chemical Requirements (Heat Analysis)
Element Composition, %
Carbon, max 0.23
A
Manganese, 0.50 to 1.50
Silicon, max 0.40
B
Vanadium, max 0.15
B
Columbium, max 0.05
Phosphorus,
...
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