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-Sep-2001
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ASTM A1008/A1008M-01a - 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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: A 1008/A 1008M – 01a
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 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),
4.1.2 Drawing Steel (DS Types A and B),
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
NOTE 1—CS Type B and DS Type B describe the most common
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
product previously included, respectively, in Specifications A 366/
A01.19 on Steel Sheet and Strip.
A 366M and A 620/A 620M.
Current edition approved Sept. 10, 2001. Published October 2001. Originally
published as A 1008/A 1008M - 00. Last previous edition A 1008/A 1008M - 01.
4.1.3 Deep Drawing Steel (DDS),
2
Discontinued and replaced by A 109/A 109M. See 1997 Annual Book of ASTM
4.1.4 Extra Deep Drawing Steel (EDDS),
Standards, Vol. 01.03.
3 4.1.5 Structural Steel (SS grades 25[170], 30[205], 33[230]
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 6
Annual Book of ASTM Standards, Vol 01.01. Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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A 1008/A 1008M
NOTE 3—A typical ordering description is as follows: ASTM A
Types 1 and 2, 40[275] Types 1 and 2, and 80[550]),
1008-XX, cold rolled steel sheet, CS Type A, exposed, matte finish, oiled,
4.1.6 High-Strength Low-Alloy Steel (HSLAS, in classes 1
0.035 by 30 in. by coil, ID 24 in., OD 48 in., max weight 15 000 lbs,
and 2, in grades 45[310], 50[340]. 55[380], 60[410], 65[450],
thickness tolerance Table 18 of Specification A 568/A 568M, 100 000 lb,
and 70[480] in Classes 1 and 2), and
for part No. 4560, Door Panel.
4.1.7 High-Strength Low-Alloy Steel with Improved Form-
or:
...

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