Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability

SCOPE
1.1 This specification covers cold rolled structural, high-strength low-alloy, and high-strength low-alloy with improved formability steel sheet, in coils and cut lengths.
1.2 Cold rolled steel sheet is available in the designations as listed in 4.1.
1.3 This specification does not apply to steel strip as described in Specification A109.
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 must be used independently of the other.

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09-Apr-2002
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ASTM A1008/A1008M-02e1 - Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
e1
Designation: A 1008/A 1008M – 02
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy and High-Strength Low-Alloy with Improved
1
Formability
This standard is issued under the fixed designation A 1008/A 1008M; 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
e NOTE—Paragraph 8.2.2.2 was editorially corrected in August 2002.
1. Scope * E 517 Test Method for Plastic Strain Ratio r for Sheet
6
Metal
1.1 This specification covers cold-rolled structural, high-
E 646 Test Method for Tensile Strain-Hardening Exponents
strength low-alloy, and high-strength low-alloy with improved
6
(n-Values) of Metallic Sheet Materials
formability steel sheet, in coils and cut lengths.
1.2 Cold rolled steel sheet is available in the designations as
3. Terminology
listed in 4.1.
3.1 Definitions:
1.3 This specification does not apply to steel strip as
3.1.1 For definitions of other terms used in this specifica-
described in Specification A 109.
tion, refer to Terminology A 941.
1.4 The values stated in either inch-pound units or SI units
3.1.2 stabilization—the addition of one or more nitride- or
are to be regarded separately as standard. Within the text, the
carbide-forming elements, or both, such as titanium and
SI units are shown in brackets. The values stated in each
columbium, to control the level of the interstitial elements of
system are not exact equivalents; therefore, each system must
carbon and nitrogen in the steel.
be used independently of the other.
3.1.2.1 Discussion—Stabilizing improves formability and
2. Referenced Documents increases resistance to aging.
3.1.3 vacuum degassing—a process of refining liquid steel
2.1 ASTM Standards:
2
in which the liquid is exposed to a vacuum as part of a special
A 109 Specification for Steel, Strip, Carbon, Cold Rolled
technique for removing impurities or for decarburizing the
A 366/A 366M Specification for Commercial Steel (CS),
3
steel.
Sheet, Carbon (0.15 Maximum Percentage), Cold-Rolled
3.2 Definitions of Terms Specific to This Standard:
A 370 Test Methods and Definitions for Mechanical Testing
4
3.2.1 aging—loss of ductility with an increase in hardness,
of Steel Products
yield strength, and tensile strength that occurs when steel that
A 568/A 568M Specification for Steel, Sheet, Carbon, and
has been slightly cold worked (such as by temper rolling) is
High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
4
stored for some time.
General Requirements for
3.2.1.1 Discussion—Aging increases the tendency of a steel
A 620/A 620M Specification for Drawing Steel (DS),
3
to exhibit stretcher strains and fluting.
Sheet, Carbon, Cold-Rolled
A 941 Terminology Relating to Steel, Stainless Steel, Re-
4. Classification
5
lated Alloys, and Ferroalloys
4.1 Cold-rolled steel sheet is available in the following
designations:
4.1.1 Commercial Steel (CS Types A, B, and C),
1
4.1.2 Drawing Steel (DS Types A and B),
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
NOTE 1—CS Type B and DS Type B describe the most common
A01.19 on Steel Sheet and Strip.
product previously included, respectively, in Specifications A 366/
Current edition approved April 10, 2002. Published May 2002. Originally
published as A 1008/A 1008M – 00. Last previous edition A 1008/A 1008M – 01a. A 366M and A 620/A 620M.
2
Discontinued and replaced by A 109/A 109M. See 1997 Annual Book of ASTM
4.1.3 Deep Drawing Steel (DDS),
Standards, Vol. 01.03.
3
4.1.4 Extra Deep Drawing Steel (EDDS),
Discontinued; see 2000 Annual Book of ASTM Standards, Vol 01.03. Replaced
by A 1008/A 1008M.
4
Annual Book of ASTM Standards, Vol 01.03.
5
Annual Book of ASTM Standards, Vol 01.01.
6
Annual Book of ASTM Standards, Vol 03.01.
*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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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 1008/A 1008M
4.1.5 Structural Steel (SS grades 25[170], 30[205], 33[230] determined by the tension test.
Types 1 and 2, 40[275] Types 1 and 2, and 80[550]),
NOTE 3—A typical ordering description is as follows: ASTM A
4.1.6 High-Strength Low-Alloy Steel (HSLAS, in classes 1
1008-XX, cold rolled steel sheet, CS Type A, exposed, matte finish
...

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