ASTM A1008/A1008M-23e1

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.
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Designation: A1008/A1008M − 23
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy, High-Strength Low-Alloy with Improved
Formability, Required Hardness, Solution Hardened, and
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Bake Hardenable
This standard is issued under the fixed designation A1008/A1008M; 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.
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ε NOTE—Footnote I in Table 1 was corrected editorially in December 2023.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* A109/A109M Specification for Steel, Strip, Carbon (0.25
Maximum Percent), Cold-Rolled
1.1 This specification covers cold-rolled, carbon, structural,
A370 Test Methods and Definitions for Mechanical Testing
high-strength low-alloy, high-strength low-alloy with im-
of Steel Products
proved formability, required hardness, full hard, solution
A568/A568M Specification for Steel, Sheet, Carbon,
hardened, and bake hardenable steel sheet, in coils and cut
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
lengths.
Cold-Rolled, General Requirements for
1.2 Cold rolled steel sheet is available in the designations as
A941 Terminology Relating to Steel, Stainless Steel, Related
listed in 4.1.
Alloys, and Ferroalloys
A1092 Specification for Steel Sheet, as Cold-Reduced, for
1.3 This specification does not apply to steel strip as
described in Specification A109/A109M. Conversion to Annealed Cold-Rolled Steel Sheet, and Hot
Dip Metallic-Coated Steel Sheet
1.4 The values stated in either SI units or inch-pound units
E18 Test Methods for Rockwell Hardness of Metallic Ma-
are to be regarded separately as standard. The values stated in
terials
each system may not be exact equivalents; therefore, each
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
system shall be used independently of the other. Combining
E646 Test Method for Tensile Strain-Hardening Exponents
values from the two systems may result in non-conformance
(n -Values) of Metallic Sheet Materials
with the standard.
1.5 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Definitions:
ization established in the Decision on Principles for the
3.1.1 For definitions of other terms used in this
Development of International Standards, Guides and Recom-
specification, refer to Terminology A941.
mendations issued by the World Trade Organization Technical
3.2 Definitions of Terms Specific to This Standard:
Barriers to Trade (TBT) Committee.
3.2.1 aging, n—loss of ductility with an increase in
hardness, yield strength, and tensile strength that occurs when
2. Referenced Documents
steel that has been slightly cold worked (such as by temper
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2.1 ASTM Standards:
rolling) is stored for some time.
3.2.1.1 Discussion—Aging increases the tendency of a steel
to exhibit stretcher strains and fluting.
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
3.2.2 Bake Hardenable Steel (BHS), n—steel in which
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip.
significant aging is realized when moderate heat treatment,
Current edition approved Nov. 1, 2023. Published November 2023. Originally
such as that used for paint baking, follows straining or cold
approved in 2000. Last previous edition approved in 2021 as A1008/A1008M – 21a.
working.
DOI: 10.1520/A1008_A1008M-23E01.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.3 Full Hard Steel (FHS), n—steel that is cold reduced
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and exhibits a microstructure consisting of non-recrystallized
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. grains.
*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
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A1008/A1008M − 23
TABLE 1 Chemical Composition for Cold Rolled Steel Sheet Designations CS, DS, DDS, EDDS, and SFS
% Heat Analysis, Element Maximum Unless Otherwise Shown
A B
Designation C Mn P S Al Si Cu Ni Cr Mo V Cb/Nb Ti N B
C,D,E,F G G H G G
CS Type A 0.10 0.60 0.025 0.035 0.20 0.20 0.15 0.06 0.008 0.008 0.025
C G G H G G
CS Type B 0.02–0.15 0.60 0.025 0.0
...