ASTM A1008/A1008M-06
(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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Designation: A 1008/A 1008M – 06
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* A 568/A 568M Specification for Steel, Sheet, Carbon,
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
1.1 This specification covers cold-rolled, carbon, structural,
Cold-Rolled, General Requirements for
high-strength low-alloy, high-strength low-alloy with im-
A 620/A 620M Specification for Drawing Steel (DS),
proved formability, solution hardened, and bake hardenable
3
Sheet, Carbon, Cold-Rolled
steel sheet, in coils and cut lengths.
A 941 Terminology Relating to Steel, Stainless Steel, Re-
1.2 Cold rolled steel sheet is available in the designations as
lated Alloys, and Ferroalloys
listed in 4.1.
E18 Test Methods for Rockwell Hardness and Rockwell
1.3 This specification does not apply to steel strip as
Superficial Hardness of Metallic Materials
described in Specification A 109/A 109M.
E 517 TestMethodforPlasticStrainRatio rforSheetMetal
1.4 The values stated in either inch-pound units or SI units
E 646 Test Method for Tensile Strain-Hardening Exponents
are to be regarded separately as standard. Within the text, the
(n -Values) of Metallic Sheet Materials
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
3. Terminology
be used independently of the other.
3.1 Definitions:
2. Referenced Documents 3.1.1 For definitions of other terms used in this specifica-
2
tion, refer to Terminology A 941.
2.1 ASTM Standards:
3.1.2 stabilization—addition of one or more nitride- or
A 109/A 109M Specification for Steel, Strip, Carbon (0.25
carbide-forming elements, or both, such as titanium and
Maximum Percent), Cold-Rolled
columbium, to control the level of the interstitial elements of
A 366/A 366M Specification for Commercial Steel (CS)
3
carbon and nitrogen in the steel.
Sheet, Carbon (0.15 Maximum Percent) Cold-Rolled
3.1.2.1 Discussion—Stabilizing improves formability and
A 370 Test Methods and Definitions for MechanicalTesting
increases resistance to aging.
of Steel Products
3.1.3 vacuum degassing—process of refining liquid steel in
which the liquid is exposed to a vacuum as part of a special
1
technique for removing impurities or for decarburizing the
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
steel.
A01.19 on Steel Sheet and Strip.
3.2 Definitions of Terms Specific to This Standard:
Current edition approved Sept. 1, 2006. Published September 2006. Originally
3.2.1 aging—loss of ductility with an increase in hardness,
approved in 2000. Last previous edition approved in 2005 as A 1008/
yield strength, and tensile strength that occurs when steel that
A 1008M – 05b.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
has been slightly cold worked (such as by temper rolling) is
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
stored for some time.
Standards volume information, refer to the standard’s Document Summary page on
3.2.1.1 Discussion—Aging increases the tendency of a steel
the ASTM website.
3
Withdrawn. to exhibit stretcher strains and fluting.
*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 – 06
3.2.2 bake hardenable steel—steel in which significant 5.1.2.1 When a type is not specified for CS or DS, Type B
aging is realized when moderate heat treatment, such as that will be furnished (see 4.1);
used for paint baking, follows straining or cold working.
5.1.2.2 When a class is not specified for HSLAS, Class 1
3.2.3 solid-solution hardened steel or solution hardened
will be furnished (see 4.1);
steel—steel strengthened through additions of elements, such
5.1.2.3 When a type is not specified for SS 33 [230] and SS
as Mn, P, or Si, that can be dissolved within the crystalline
40 [275], Type 1 will be furnished (see 4.1);
structure of steels.
5.1.3 Classification (either exposed, unexposed, temper
3.2.3.1 Discussion—Alloying elements that form a solid-
rolled, or annealed last) (see 4.3);
solution with iron provide strengthening as a result
...
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–05b Designation: A 1008/A 1008M – 06
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
A 366/A 366M Specification for Commercial Steel (CS),(CS) Sheet, Carbon (0.15 Maximum Percentage),Percent) Cold-
3
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 TestMethodsforRockwellHardnessandRockwellSuperficialHardnessofMetallicMaterialsTestMethodsforRockwell
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
3.1 Definitions:
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.
3.1.2.1 Discussion—Stabilizing improves formability and increases resistance to aging.
3.1.3 vacuum degassing—process of refining liquid steel in which the liquid is exposed to a vacuum as part of a special
technique for removing impurities or for decarburizing the steel.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 aging—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 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 Dec.Sept. 1, 2005.2006. Published December 2005.September 2006. Originally approved in 2000. Last previous edition approved in 2005 as
A 1008/A 1008M – 05ab.
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 – 06
3.2.2 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.
3.2.3 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.
3.2.3.1 Discussion—Alloying elements that form a solid-solution with iron provide strengthening as a result of loc
...
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