ASTM A1011/A1011M-23

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.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Apr-2023
• ICS: 77.140.20 - Stainless steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.19 - Steel Sheet and Strip

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A1011/A1011M − 23
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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* A635/A635M Specification for Steel, Sheet and Strip,
Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon,
1.1 This specification covers hot-rolled, carbon, structural,
Structural, High-Strength Low-Alloy, and High-Strength
high-strength low-alloy, high-strength low-alloy with im-
Low-Alloy with Improved Formability, General Require-
proved formability, and ultra-high strength steel sheet and strip,
ments for
in coils and cut lengths.
A749/A749M Specification for Steel, Strip, Carbon and
1.2 Hot rolled steel sheet and strip is available in the
High-Strength, Low-Alloy, Hot-Rolled, General Require-
designations as listed in 4.1.
ments for
1.3 This specification is not applicable to the steel covered
A751 Test Methods and Practices for Chemical Analysis of
by Specification A635/A635M.
Steel Products
A941 Terminology Relating to Steel, Stainless Steel, Related
1.4 The values stated in either SI units or inch-pound units
Alloys, and Ferroalloys
are to be regarded separately as standard. The values stated in
E18 Test Methods for Rockwell Hardness of Metallic Ma-
each system may not be exact equivalents; therefore, each
terials
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3. Terminology
with the standard.
1.5 This international standard was developed in accor-
3.1 Definitions—For definitions of other terms used in this
dance with internationally recognized principles on standard-
specification refer to Terminology A941.
ization established in the Decision on Principles for the
3.2 Definitions of Terms Specific to This Standard:
Development of International Standards, Guides and Recom-
3.2.1 aging, n—loss of ductility with an increase in
mendations issued by the World Trade Organization Technical
hardness, yield strength, and tensile strength that occurs when
Barriers to Trade (TBT) Committee.
steel, which has been slightly cold worked (such as by temper
2. Referenced Documents rolling) is stored for some time.
2
3.2.1.1 Discussion—Aging also increases the tendency to-
2.1 ASTM Standards:
ward stretcher strains and fluting.
A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
3.2.2 inclusion control, n—the process of reducing the
A568/A568M Specification for Steel, Sheet, Carbon,
volume fraction of inclusions or modifying the shape of
Structural, and High-Strength, Low-Alloy, Hot-Rolled and
inclusions to improve formability, weldability, and machinabil-
Cold-Rolled, General Requirements for
ity.
3.2.2.1 Discussion—Inclusions, especially those elongated
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, during the rolling process, create the conditions for initiating or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
propagating cracks when the material is stretched or bent
A01.19 on Steel Sheet and Strip.
during the manufacture of a part (or both). The adverse effects
Current edition approved May 1, 2023. Published June 2023. Originally
of inclusions are minimized by reducing the content of
approved in 2000. Last previous edition approved in 2018 as A1011/A1011M – 18a.
DOI: 10.1520/A1011_A1011M-23.
inclusions in the steel or by altering the shape of inclusions
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
through the use of additions during the steelmaking process
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
that change the elongated shape of the inclusions to less
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. harmful small, well dispersed globular inclusions (or both).
*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

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A1011/A1011M − 23
3.2.3 stabilization, n—addition of one or more nitride or Specifi
...

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: A1011/A1011M − 18a A1011/A1011M − 23
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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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 for
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
A751 Test Methods and Practices for Chemical Analysis of Steel Products
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E18 Test Methods for Rockwell Hardness of Metallic Materials
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 Sept. 1, 2018May 1, 2023. Published September 2018June 2023. Originally approved in 2000. Last previous edition approved in 2018 as
A1011/A1011M – 18.A1011/A1011M – 18a. DOI: 10.1520/A1011_A1011M-18A. 10.1520/A1011_A1011M-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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 − 23
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, n—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
steelma
...