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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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-2003
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ASTM A1008/A1008M-03 - 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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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.
Designation: A 1008/A 1008M – 03
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. Scope* E 646 Test Method for Tensile Strain-Hardening Exponents
5
(n-Values) of Metallic Sheet Materials
1.1 This specification covers cold-rolled structural, high-
strength low-alloy, and high-strength low-alloy with improved
3. Terminology
formability steel sheet, in coils and cut lengths.
3.1 Definitions:
1.2 Cold rolled steel sheet is available in the designations as
3.1.1 For definitions of other terms used in this specifica-
listed in 4.1.
tion, refer to Terminology A 941.
1.3 This specification does not apply to steel strip as
3.1.2 stabilization—the addition of one or more nitride- or
described in Specification A 109.
carbide-forming elements, or both, such as titanium and
1.4 The values stated in either inch-pound units or SI units
columbium, to control the level of the interstitial elements of
are to be regarded separately as standard. Within the text, the
carbon and nitrogen in the steel.
SI units are shown in brackets. The values stated in each
3.1.2.1 Discussion—Stabilizing improves formability and
system are not exact equivalents; therefore, each system must
increases resistance to aging.
be used independently of the other.
3.1.3 vacuum degassing—a process of refining liquid steel
2. Referenced Documents in which the liquid is exposed to a vacuum as part of a special
technique for removing impurities or for decarburizing the
2.1 ASTM Standards:
steel.
A 109/A 109M Specification for Steel, Strip, Carbon (0.25
2
3.2 Definitions of Terms Specific to This Standard:
Maximum Percent), Cold Rolled
3.2.1 aging—loss of ductility with an increase in hardness,
A 366/A 366M Specification for Commercial Steel (CS),
3 yield strength, and tensile strength that occurs when steel that
Sheet, Carbon (0.15 Maximum Percentage), Cold-Rolled
has been slightly cold worked (such as by temper rolling) is
A 370 Test Methods and Definitions for Mechanical Testing
2 stored for some time.
of Steel Products
3.2.1.1 Discussion—Aging increases the tendency of a steel
A 568/A 568M Specification for Steel, Sheet, Carbon, and
to exhibit stretcher strains and fluting.
High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
2
General Requirements for
4. Classification
A 620/A 620M Specification for Drawing Steel (DS),
3 4.1 Cold-rolled steel sheet is available in the following
Sheet, Carbon, Cold-Rolled
designations:
A 941 Terminology Relating to Steel, Stainless Steel, Re-
4 4.1.1 Commercial Steel (CS Types A, B, and C),
lated Alloys, and Ferroalloys
4.1.2 Drawing Steel (DS Types A and B),
E 517 Test Method for Plastic Strain Ratio r for Sheet
5
Metal
NOTE 1—CS Type B and DS Type B describe the most common
product previously included, respectively, in Specifications A 366/
A 366M and A 620/A 620M.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.1.3 Deep Drawing Steel (DDS),
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4.1.4 Extra Deep Drawing Steel (EDDS),
A01.19 on Steel Sheet and Strip.
Current edition approved April 10, 2003. Published May 2003. Originally
4.1.5 Structural Steel (SS grades 25[170], 30[205], 33[230]
approved in 2000. Last previous edition approved in 2002 as A 1008/
Types 1 and 2, 40[275] Types 1 and 2, and 80[550]),
e1
A 1008M – 02 .
2 4.1.6 High-Strength Low-Alloy Steel (HSLAS, in classes 1
Annual Book of ASTM Standards, Vol 01.03.
3
Discontinued; see 2000 Annual Book of ASTM Standards, Vol 01.03. Replaced and 2, in grades 45[310], 50[340]. 55[380], 60[410], 65[450],
by A 1008/A 1008M.
and 70[480] in Classes 1 and 2), and
4
Annual Book of ASTM Standards, Vol 01.01.
5
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.
1

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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 – 03
thickness tolerance Table 18 of Specification A 568/A 568M, 100 000 lb,
4.1.7 High-Strength Low-Alloy Steel with Improved Form-
for part No. 4560, Door Panel.
ability (HSLAS-F grades 50[340], 60[410], 70[480], and
or
...

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