ASTM A1008/A1008M-16
(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 A109/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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 −16
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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* E517 Test Method for Plastic Strain Ratio r for Sheet Metal
E646 Test Method for Tensile Strain-Hardening Exponents
1.1 This specification covers cold-rolled, carbon, structural,
(n -Values) of Metallic Sheet Materials
high-strength low-alloy, high-strength low-alloy with im-
proved formability, solution hardened, and bake hardenable
3. Terminology
steel sheet, in coils and cut lengths.
3.1 Definitions of Terms Specific to This Standard:
1.2 Cold rolled steel sheet is available in the designations as
3.1.1 For definitions of other terms used in this
listed in 4.1.
specification, refer to Terminology A941.
1.3 This specification does not apply to steel strip as
3.1.2 aging, n—loss of ductility with an increase in
described in Specification A109/A109M.
hardness, yield strength, and tensile strength that occurs when
1.4 The values stated in either SI units or inch-pound units steel that has been slightly cold worked (such as by temper
are to be regarded separately as standard. The values stated in rolling) is stored for some time.
each system may not be exact equivalents; therefore, each 3.1.2.1 Discussion—Aging increases the tendency of a steel
system shall be used independently of the other. Combining to exhibit stretcher strains and fluting.
values from the two systems may result in non-conformance
3.1.3 bake hardenable steel, n—steel in which significant
with the standard.
aging is realized when moderate heat treatment, such as that
used for paint baking, follows straining or cold working.
2. Referenced Documents
3.1.4 inclusion control, n—the process of reducing the
2
2.1 ASTM Standards:
volume fraction of inclusions or modifying the shape of
A109/A109M Specification for Steel, Strip, Carbon (0.25
inclusions to improve formability, weldability, and machinabil-
Maximum Percent), Cold-Rolled
ity.
A370 Test Methods and Definitions for Mechanical Testing
3.1.4.1 Discussion—Inclusions, especially those elongated
of Steel Products
duringtherollingprocess,createtheconditionsforinitiatingor
A568/A568M Specification for Steel, Sheet, Carbon,
propagating cracks, or both, when the material is stretched or
Structural,andHigh-Strength,Low-Alloy,Hot-Rolledand
bent during the manufacture of a part. The adverse effects of
Cold-Rolled, General Requirements for
inclusions are minimized by reducing the content of inclusions
A941 TerminologyRelatingtoSteel,StainlessSteel,Related
in the steel or by altering the shape of inclusions, or both,
Alloys, and Ferroalloys
through the use of additions during the steelmaking process
E18 Test Methods for Rockwell Hardness of Metallic Ma-
that change the elongated shape of the inclusions to less
terials
harmful small, well dispersed globular inclusions.
3.1.5 solid-solution hardened steel or solution hardened
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
steel,n—steelstrengthenedthroughadditionsofelements,such
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
as Mn, P, or Si, that can be dissolved within the crystalline
A01.19 on Steel Sheet and Strip.
structure of steels.
Current edition approved Sept. 1, 2016. Published September 2016. Originally
3.1.5.1 Discussion—Alloying elements that form a solid-
approved in 2000. Last previous edition approved in 2015 as A1008/A1008M – 15.
DOI: 10.1520/A1008_A1008M-16.
solution with iron provide strengthening as a result of local
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
distortions in atomic arrangements, which arise as a result of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the mismatch between the atomic sizes of such elements and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. that of iron.
*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−16
3.1.6 stabilization, n—addition of one or more nitride- or 4.1.6 SpecialFormingSteel(SFS),chemistryasspecifie
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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 − 15 A1008/A1008M − 16
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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
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 A109/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
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
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 A941.
3.1.2 aging, n—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.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.19
on Steel Sheet and Strip.
Current edition approved May 1, 2015Sept. 1, 2016. Published May 2015September 2016. Originally approved in 2000. Last previous edition approved in 20132015 as
A1008/A1008M – 13.A1008/A1008M – 15. DOI: 10.1520/A1008_A1008M-15.10.1520/A1008_A1008M-16.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3.1.2.1 Discussion—
Aging increases the tendency of a steel to exhibit stretcher strains and fluting.
3.1.3 bake hardenable steel, n—steel in which significant aging is realized when moderate heat treatment, such as that used for
paint baking, follows straining or cold working.
*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 − 16
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 or propagating cracks, or both,
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 or by altering the shape of inclusions, or both, through the use of additions 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 hardened steel, n—steel strengthened through additions of elements, such as Mn,
P, or Si, that can be dissolved within the cryst
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.