ASTM A1008/A1008M-09
(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
ABSTRACT
This specification covers cold-rolled, carbon steel sheets, in coils and cut lengths, in the following designations: commercial steels (CS Types A, B, and C); drawing steel (DS Types A and B); deep drawing steel (DDS); extra deep drawing steel (EDDS); structural steel (SS Grades 25[170], 30[205], 33[230] Types 1 and 2, 40[275] Types 1 and 2, 50[340], 60[410], 70[480], and 80[550]); high-strength low-alloy steel (HSLAS Classes 1 and 2 of Grades 45[310], 50[340]. 55[380], 60[410], 65[450], and 70[480]), high-strength low-alloy steel with improved formability (HSLAS-F Grades 50[340], 60[410], 70[480], and 80[550]); solution hardened steel (SHS); and bake hardenable steel (BHS). Conformance of the steel sheets to chemical composition requirements shall be tested by heat analysis. Specimens shall also undergo tension and bending tests and shall conform to specified values of tensile and yield strength, elongation, and bake hardening index. Unless otherwise indicated, sheet surfaces shall have a matte finish and shall be oiled.
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 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A1008/A1008M – 09
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 A1008/A1008M; 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* A568/A568M Specification for Steel, Sheet, Carbon, Struc-
tural, 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-
A620/A620M Specification for Drawing Steel (DS), Sheet,
proved formability, solution hardened, and bake hardenable
3
Carbon, Cold-Rolled
steel sheet, in coils and cut lengths.
A941 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 of Metallic Ma-
1.3 This specification does not apply to steel strip as
terials
described in Specification A109/A109M.
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
1.4 The values stated in either SI units or inch-pound units
E646 Test Method for Tensile Strain-Hardening Exponents
are to be regarded separately as standard. The values stated in
(n -Values) of Metallic Sheet Materials
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
3. Terminology
values from the two systems may result in non-conformance
3.1 Definitions of Terms Specific to This Standard:
with the standard.
3.1.1 For definitions of other terms used in this specifica-
2. Referenced Documents tion, refer to Terminology A941.
2
3.1.2 aging—loss of ductility with an increase in hardness,
2.1 ASTM Standards:
yield strength, and tensile strength that occurs when steel that
A109/A109M Specification for Steel, Strip, Carbon (0.25
has been slightly cold worked (such as by temper rolling) is
Maximum Percent), Cold-Rolled
stored for some time.
A366/A366M Specification for Commercial Steel (CS)
3 3.1.2.1 Discussion—Aging increases the tendency of a steel
Sheet, Carbon (0.15 Maximum Percent) Cold-Rolled
to exhibit stretcher strains and fluting.
A370 Test Methods and Definitions for Mechanical Testing
3.1.3 bake hardenable steel—steel in which significant
of Steel Products
aging is realized when moderate heat treatment, such as that
used for paint baking, follows straining or cold working.
3.1.4 inclusion control, n—the process of reducing the
1
This specification is under the jurisdiction of ASTM CommitteeA01 on Steel,
volume fraction of inclusions or modifying the shape of
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip.
inclusions to improve formability, weldability, and machinabil-
Current edition approved May 1, 2009. Published May 2009. Originally
ity.
approvedin2000.Lastpreviouseditionapprovedin2008asA1008/A1008M – 08a.
3.1.4.1 Discussion—Inclusions, especially those elongated
DOI: 10.1520/A1008_A1008M-09.
2
during the rolling process, create the conditions for initiating
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
and/or propagating cracks when the material is stretched or
Standards volume information, refer to the standard’s Document Summary page on
bent during the manufacture of a part. The adverse effects of
the ASTM website.
3
inclusions are minimized by reducing the content of inclusions
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org. in the steel and/or by altering the shape of inclusions through
*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 ----------------------
A1008/A1008M – 09
theuseofadditionsduringthesteelmakingprocessthatchange 5. Ordering Information
the elongated shape of the inclusions to less harmful small,
5.1 It is the purchaser’s responsibility to specify in the
well dispersed globular inclusions.
purchase order all ordering information necessary to describe
3.1.5 solid-solution hardened steel or solution hardened
the required material. Examples of such information include,
steel—steel strengthened through additions of elements, such
but are not limited to, the following:
as Mn, P, or Si, t
...
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:A 1008/A 1008M–08a Designation: A1008/A1008M – 09
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 A1008/A1008M; 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 109MA109/A109M.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A109/A109M Specification for Steel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled
3
A366/A366M Specification for Commercial Steel (CS) Sheet, Carbon (0.15 Maximum Percent) Cold-Rolled
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
General Requirements for
0
A620/A620M Specification for Drawing Steel (DS), Sheet, Carbon, Cold-Rolled
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E18 Test Methods for Rockwell Hardness of Metallic Materials
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
E646 Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materials
3. Terminology
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 941A941.
3.1.2 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.
3.1.2.1 Discussion—Aging increases the tendency of a steel to exhibit stretcher strains and fluting.
3.1.3 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.
3.1.4 inclusion control, n—the process of reducing the volume fraction of inclusions or modifying the shape of inclusions to
improve formability, weldability, and machinability.
3.1.4.1 Discussion—Inclusions, especially those elongated during the rolling process, create the conditions for initiating and/or
propagating cracks when the material is stretched or bent during the manufacture of a part. The adverse effects of inclusions are
minimized by reducing the content of inclusions in the steel and/or by altering the shape of inclusions through the use of additions
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 Oct.May 1, 2008.2009. Published October 2008.May 2009. Originally approved in 2000. Last previous edition approved in 2008as
A1008/A1008M – 08a. DOI: 10.1520/A1008_A1008M-09.
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.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
*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 ----------------------
A1008/A1008M – 09
during the steelmaking process that change the elongated shape of the inclusions to less harmful small, well dispersed globular
inclusions.
3.1.5 solid-solution h
...
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–08a Designation: A 1008/A 1008M – 09
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 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
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
3.1 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 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.
3.1.2.1 Discussion—Aging increases the tendency of a steel to exhibit stretcher strains and fluting.
3.1.3 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.
3.1.4 inclusion control, n—the process of reducing the volume fraction of inclusions or modifying the shape of inclusions to
improve formability, weldability, and machinability.
3.1.4.1 Discussion—Inclusions, especially those elongated during the rolling process, create the conditions for initiating and/or
propagating cracks when the material is stretched or bent during the manufacture of a part. The adverse effects of inclusions are
minimized by reducing the content of inclusions in the steel and/or by altering the shape of inclusions through the use of additions
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 Oct.May 1, 2008.2009. Published October 2008.May 2009. Originally approved in 2000. Last previous edition approved in 2008as
A 1008/A 1008M – 08a.
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.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
*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 – 09
during the steelmaking process that change the elongated shape of the inclusions to less harmful small, well dispersed globular
inclusions.
3.1.5 solid-solution hardened steel or solution
...
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