ASTM A1011/A1011M-12
(Specification)Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength
Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength
ABSTRACT
This specification covers hot-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved formability, and ultra-high strength steel sheet and strip, in coils and cut lengths. The steels covered here are: Commercial Steels of types A, B, C, and D; Drawing Steels of types A and B; Structural Steels of grades 30 [205], 33 [230], 36 [250] (with Types 1 and 2), 40 [275], 45 [310], 50 [340], 55 [380], 60 [410], 70 [480], and 80 [550]; High-strength Low-alloy Steel of classes 1 and 2 in grades 45 [310], 50 [340], 55 [380], 60 [410], 65 [450], and 70 [480]; High-strength Low-alloy steels with improved formability in grades 50 [340], 60 [410], 70 [480], and 80 [550]; and Ultra-high Strength Steels of types 1 and 2 in grades 90 [620] and 100 [690]. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, phosphorus, sulfur, aluminum, silicon, copper, nickel, chromium, molybdenum, vanadium, niobium, titanium, nitrogen, and boron. Except for Commercial and Drawing steels, all other steels shall undergo two tension tests, and shall conform to the following mechanical requirements: yield strength, tensile strength, and elongation. All steels shall undergo bending tests.
SCOPE
1.1 This specification covers hot-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved formability, and ultra-high strength steel sheet and strip, in coils and cut lengths.
1.2 Hot rolled steel sheet and strip is available in the designations as listed in 4.1.
1.3 This specification is not applicable to the steel covered by Specification A635/A635M.
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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Designation:A1011/A1011M −12
StandardSpecification for
Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-
Strength Low-Alloy, High-Strength Low-Alloy with Improved
1
Formability, and Ultra-High Strength
This standard is issued under the fixed designation A1011/A1011M; 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* A941 TerminologyRelatingtoSteel,StainlessSteel,Related
Alloys, and Ferroalloys
1.1 This specification covers hot-rolled, carbon, structural,
E18 Test Methods for Rockwell Hardness of Metallic Ma-
high-strength low-alloy, high-strength low-alloy with im-
terials
provedformability,andultra-highstrengthsteelsheetandstrip,
in coils and cut lengths.
3. Terminology
1.2 Hot rolled steel sheet and strip is available in the
3.1 Definitions—For definitions of other terms used in this
designations as listed in 4.1.
specification refer to Terminology A941.
1.3 This specification is not applicable to the steel covered
by Specification A635/A635M. 3.2 Definitions of Terms Specific to This Standard:
3.2.1 aging—loss of ductility with an increase in hardness,
1.4 The values stated in either SI units or inch-pound units
yield strength, and tensile strength that occurs when steel,
are to be regarded separately as standard. The values stated in
which has been slightly cold worked (such as by temper
each system may not be exact equivalents; therefore, each
rolling) is stored for some time.
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3.2.1.1 Discussion—Aging also increases the tendency to-
with the standard.
ward stretcher strains and fluting.
3.2.2 inclusion control, n—the process of reducing the
2. Referenced Documents
2 volume fraction of inclusions or modifying the shape of
2.1 ASTM Standards:
inclusions to improve formability, weldability, and machinabil-
A370 Test Methods and Definitions for Mechanical Testing
ity.
of Steel Products
3.2.2.1 Discussion—Inclusions, especially those elongated
A568/A568M Specification for Steel, Sheet, Carbon,
duringtherollingprocess,createtheconditionsforinitiatingor
Structural,andHigh-Strength,Low-Alloy,Hot-Rolledand
propagating cracks when the material is stretched or bent
Cold-Rolled, General Requirements for
during the manufacture of a part (or both). The adverse effects
A635/A635M Specification for Steel, Sheet and Strip,
of inclusions are minimized by reducing the content of
Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon,
Structural, High-Strength Low-Alloy, and High-Strength inclusions in the steel or by altering the shape of inclusions
through the use of additions during the steelmaking process
Low-Alloy with Improved Formability, General Require-
ments for that change the elongated shape of the inclusions to less
A749/A749M Specification for Steel, Strip, Carbon and harmful small, well dispersed globular inclusions (or both).
High-Strength, Low-Alloy, Hot-Rolled, General Require-
3.2.3 stabilization—addition of one or more nitride or car-
ments for
bide forming elements, or both, such as titanium and
columbium, to control the level of the interstitial elements
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
carbon and nitrogen in the steel.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip. 3.2.3.1 Discussion—Stabilization improves formability and
Current edition approved March 1, 2012. Published March 2012. Originally
increases resistance to aging.
approved in 2000. Last previous edition approved in 2010 as A1011/A1011M – 10.
DOI: 10.1520/A1011_A1011M-12.
3.2.4 vacuum degassing—process of refining liquid steel in
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
which the liquid is exposed to a vacuum as part of a special
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
technique for removing impurities or for decarburizing the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. steel.
*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 ----------------------
A1011/A1011M−12
4. Classification 5.1.6 Dimensions(thickness,width,andwhethercutlengths
or coils),
4.1 Hot-rolled steel sheet and steel strip is available in the
following designations: NOTE 2—Not all producers are capable of meeting all the limitations of
the thickness toleranc
...
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:A1011/A1011M–10 Designation: A1011/A1011M – 12
Standard Specification for
Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-
Strength Low-Alloy, High-Strength Low-Alloy with Improved
1
Formability, and Ultra-High Strength
This standard is issued under the fixed designation A1011/A1011M; 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 hot-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved
formability, and ultra-high strength steel sheet and strip, in coils and cut lengths.
1.2 Hot rolled steel sheet and strip is available in the designations as listed in 4.1.
1.3 This specification is not applicable to the steel covered by Specification A635/A635M.
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:
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 forA569/A569MSpecification for Steel, Carbon (0.15 Maximum, Percent), Hot-Rolled Sheet and Strip
Commercial
3
A622/A622MSpecification for Drawing Steel (DS), Sheet and Strip, Carbon, Hot-Rolled
A635/A635M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Structural,
High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements for
A749/A749M Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements for
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E18 Test Methods for Rockwell Hardness of Metallic Materials
3. Terminology
3.1 Definitions—For definitions of other terms used in this specification refer to Terminology A941.
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, which has
been slightly cold worked (such as by temper rolling) is stored for some time.
3.2.1.1 Discussion—Aging also increases the tendency toward stretcher strains and fluting.
3.2.2 inclusion control, n—the process of reducing the volume fraction of inclusions or modifying the shape of inclusions to
improve formability, weldability, and machinability.
3.2.2.1 Discussion—Inclusions, especially those elongated during the rolling process, create the conditions for initiating or
propagating cracks when the material is stretched or bent during the manufacture of a part (or both). The adverse effects of
inclusions are minimized by reducing the content of inclusions in the steel or by altering the shape of inclusions 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 (or both).
3.2.3 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 carbon and nitrogen in the steel.
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 AprilMarch 1, 2010.2012. Published April 2010.March 2012. Originally approved in 2000. Last previous edition approved in 20092010 as
A1011/A1011M – 109b. DOI: 10.1520/A1011_A1011M-102.
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.
*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 ----------------------
A1011/A1011M – 12
...
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:A1011/A1011M–10 Designation: A1011/A1011M – 12
Standard Specification for
Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-
Strength Low-Alloy, High-Strength Low-Alloy with Improved
1
Formability, and Ultra-High Strength
This standard is issued under the fixed designation A1011/A1011M; 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 hot-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved
formability, and ultra-high strength steel sheet and strip, in coils and cut lengths.
1.2 Hot rolled steel sheet and strip is available in the designations as listed in 4.1.
1.3 This specification is not applicable to the steel covered by Specification A635/A635M.
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:
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 forA569/A569MSpecification for Steel, Carbon (0.15 Maximum, Percent), Hot-Rolled Sheet and Strip
Commercial
3
A622/A622MSpecification for Drawing Steel (DS), Sheet and Strip, Carbon, Hot-Rolled
A635/A635M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Structural,
High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements for
A749/A749M Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements for
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E18 Test Methods for Rockwell Hardness of Metallic Materials
3. Terminology
3.1 Definitions—For definitions of other terms used in this specification refer to Terminology A941.
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, which has
been slightly cold worked (such as by temper rolling) is stored for some time.
3.2.1.1 Discussion—Aging also increases the tendency toward stretcher strains and fluting.
3.2.2 inclusion control, n—the process of reducing the volume fraction of inclusions or modifying the shape of inclusions to
improve formability, weldability, and machinability.
3.2.2.1 Discussion—Inclusions, especially those elongated during the rolling process, create the conditions for initiating or
propagating cracks when the material is stretched or bent during the manufacture of a part (or both). The adverse effects of
inclusions are minimized by reducing the content of inclusions in the steel or by altering the shape of inclusions 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 (or both).
3.2.3 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 carbon and nitrogen in the steel.
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 AprilMarch 1, 2010.2012. Published April 2010.March 2012. Originally approved in 2000. Last previous edition approved in 20092010 as
A1011/A1011M – 109b. DOI: 10.1520/A1011_A1011M-102.
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.
*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 ----------------------
A1011/A1011M – 12
...
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