ASTM A1008/A1008M-06a
(Specification)Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable
Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable
SCOPE
1.1 This specification covers cold-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved formability, solution hardened, and bake hardenable steel sheet, in coils and cut lengths.
1.2 Cold rolled steel sheet is available in the designations as listed in .
1.3 This specification does not apply to steel strip as described in Specification A 109/A 109M.
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation: A 1008/A 1008M – 06a
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy, High-Strength Low-Alloy with Improved
1
Formability, Solution Hardened, and Bake Hardenable
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* Superficial Hardness of Metallic Materials
E 517 TestMethodforPlasticStrainRatio rforSheetMetal
1.1 This specification covers cold-rolled, carbon, structural,
E 646 Test Method for Tensile Strain-Hardening Exponents
high-strength low-alloy, high-strength low-alloy with im-
(n -Values) of Metallic Sheet Materials
proved formability, solution hardened, and bake hardenable
steel sheet, in coils and cut lengths.
3. Terminology
1.2 Cold rolled steel sheet is available in the designations as
3.1 Definitions of Terms Specific to This Standard:
listed in 4.1.
3.1.1 For definitions of other terms used in this specifica-
1.3 This specification does not apply to steel strip as
tion, refer to Terminology A 941.
described in Specification A 109/A 109M.
3.1.2 aging—loss of ductility with an increase in hardness,
1.4 The values stated in either inch-pound units or SI units
yield strength, and tensile strength that occurs when steel that
are to be regarded separately as standard. Within the text, the
has been slightly cold worked (such as by temper rolling) is
SI units are shown in brackets. The values stated in each
stored for some time.
system are not exact equivalents; therefore, each system must
3.1.2.1 Discussion—Aging increases the tendency of a steel
be used independently of the other.
to exhibit stretcher strains and fluting.
2. Referenced Documents 3.1.3 bake hardenable steel—steel in which significant
2
aging is realized when moderate heat treatment, such as that
2.1 ASTM Standards:
used for paint baking, follows straining or cold working.
A 109/A 109M Specification for Steel, Strip, Carbon (0.25
3.1.4 solid-solution hardened steel or solution hardened
Maximum Percent), Cold-Rolled
steel—steel strengthened through additions of elements, such
A 366/A 366M Specification for Commercial Steel (CS)
3
as Mn, P, or Si, that can be dissolved within the crystalline
Sheet, Carbon (0.15 Maximum Percent) Cold-Rolled
structure of steels.
A 370 Test Methods and Definitions for MechanicalTesting
3.1.4.1 Discussion—Alloying elements that form a solid-
of Steel Products
solution with iron provide strengthening as a result of local
A 568/A 568M Specification for Steel, Sheet, Carbon,
distortions in atomic arrangements, which arise as a result of
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
the mismatch between the atomic sizes of such elements and
Cold-Rolled, General Requirements for
that of iron.
A 620/A 620M Specification for Drawing Steel (DS),
3
3.1.5 stabilization—addition of one or more nitride- or
Sheet, Carbon, Cold-Rolled
carbide-forming elements, or both, such as titanium and
A 941 Terminology Relating to Steel, Stainless Steel, Re-
columbium, to control the level of the interstitial elements of
lated Alloys, and Ferroalloys
carbon and nitrogen in the steel.
E18 Test Methods for Rockwell Hardness and Rockwell
3.1.5.1 Discussion—Stabilizing improves formability and
increases resistance to aging.
3.1.6 vacuum degassing—process of refining liquid steel in
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
which the liquid is exposed to a vacuum as part of a special
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
technique for removing impurities or for decarburizing the
A01.19 on Steel Sheet and Strip.
steel.
Current edition approved Oct. 1, 2006. Published October 2006. Originally
approvedin2000.Lastpreviouseditionapprovedin2006asA 1008/A 1008M – 06.
2
4. Classification
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.1 Cold-rolled steel sheet is available in the following
Standards volume information, refer to the standard’s Document Summary page on
designations:
the ASTM website.
3
Withdrawn. 4.1.1 Commercial Steel (CS Types A, B, and C),
*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
---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org)
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A1008/A1008M–06 Designation: A 1008/A 1008M – 06a
Standard Specification for
Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength
Low-Alloy, High-Strength Low-Alloy with Improved
1
Formability, Solution Hardened, and Bake Hardenable
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers cold-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved
formability, solution hardened, and bake hardenable 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 A 109/A 109M.
1.4 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used
independently of the other.
2. Referenced Documents
2
2.1 ASTM Standards:
A 109/A 109M Specification for Steel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled
3
A 366/A 366M Specification for Commercial Steel (CS) Sheet, Carbon (0.15 Maximum Percent) Cold-Rolled
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 568/A 568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
General Requirements for
0
A 620/A 620M Specification for Drawing Steel (DS), Sheet, Carbon, Cold-Rolled
A 941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E18 Test Methods for Rockwell Hardness of Metallic Materials
E 517 Test Method for Plastic Strain Ratio r for Sheet Metal
E 646 Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materials
3. Terminology
3.1Definitions:
3.1 Definitions of Terms Specific to This Standard:
3.1.1 For definitions of other terms used in this specification, refer to Terminology A 941.
3.1.2 stabilization—addition of one or more nitride- or carbide-forming elements, or both, such as titanium and columbium, to
control the level of the interstitial elements of carbon and nitrogen in the steel.
3.1.2.1Discussion—Stabilizing improves formability and increases resistance to aging.
3.1.3vacuum degassing—processofrefiningliquidsteelinwhichtheliquidisexposedtoavacuumaspartofaspecialtechnique
for removing impurities or for decarburizing the steel.
3.2Definitions of Terms Specific to This Standard:
3.2.1aging—loss of ductility with an increase in hardness, yield strength, and tensile strength that occurs when steel that has
been slightly cold worked (such as by temper rolling) is stored for some time.
3.2.1.1
3.1.2.1 Discussion—Aging increases the tendency of a steel to exhibit stretcher strains and fluting.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.19
on Steel Sheet and Strip.
Current edition approved Sept.Oct. 1, 2006. Published SeptemberOctober 2006. Originally approved in 2000. Last previous edition approved in 20052006 as
A 1008/A 1008M – 05b6.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
*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
---------------------- Page: 1 ----------------------
A 1008/A 1008M – 06a
3.2.23.1.3 bake hardenable steel—steel in which significant aging is realized when moderate heat treatment, such as that used
for paint baking, follows straining or cold working.
3.2.33.1.4 solid-solution hardened steel or solution hardened steel—steel strengthened through additions of elements, such as
Mn, P, or Si, that can be dissolved within the crystalline structure of steels.
3.2.3.13.1.4.1 Discussion—Alloying elements that form a solid-solution with iron provide strengthening as a result of local
distortions in atomic arrangements, which ari
...
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