ASTM A573/A573M-20

Standard Specification for Structural Carbon Steel Plates

ABSTRACT
This specification covers structural quality carbon-manganese-silicon steel plates in three tensile strength ranges intended primarily for service at atmospheric temperatures where improved notch toughness is important. If the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service shall be utilized. The steel shall be made by fine grain practice. Heat and product analysis shall conform to the chemical composition requirements prescribed for carbon, manganese, phosphorus, sulfur, and silicon. The tension test specimen shall conform to the tensile requirements including tensile strength, yield point, and elongation.
SCOPE
1.1 This specification covers structural quality carbon-manganese-silicon steel plates in three tensile strength ranges.  
Note 1: This specification was originally intended primarily for construction of storage tanks used at ambient temperatures when improved toughness was needed over that available in semi-killed ingot cast steels.  
1.2 Plates covered by this specification are limited to a maximum thickness of 1.5 in. [40 mm].  
1.3 If the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.  
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 necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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-Jun-2020
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.02 - Structural Steel for Bridges, Buildings, Rolling Stock and Ships

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:A573/A573M −20
Standard Specification for
1
Structural Carbon Steel Plates
This standard is issued under the fixed designationA573/A573M; 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* mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This specification covers structural quality carbon-
manganese-silicon steel plates in three tensile strength ranges.
2. Referenced Documents
2
NOTE 1—This specification was originally intended primarily for
2.1 ASTM Standards:
construction of storage tanks used at ambient temperatures when im-
A6/A6M Specification for General Requirements for Rolled
proved toughness was needed over that available in semi-killed ingot cast
Structural Steel Bars, Plates, Shapes, and Sheet Piling
steels.
3. General Requirements for Delivery
1.2 Plates covered by this specification are limited to a
maximum thickness of 1.5 in. [40 mm].
3.1 Plates furnished under this specification shall conform
to the requirements of the current edition of Specification
1.3 If the steel is to be welded, it is presupposed that a
A6/A6M, unless a conflict exists in which case this specifica-
welding procedure suitable for the grade of steel and intended
tion shall prevail.
use or service will be utilized. See Appendix X3 of Specifica-
tion A6/A6M for information on weldability.
4. Chemical Composition
1.4 The values stated in either inch-pound units or SI units
4.1 The heat analysis shall conform to the requirements
are to be regarded separately as standard. Within the text, the
given in Table 1.
SI units are shown in brackets. The values stated in each
4.2 The product analysis shall conform to the requirements
system are not necessarily exact equivalents; therefore, to
given in Table 1 subject to the product analysis tolerances in
ensure conformance with the standard, each system shall be
Specification A6/A6M.
used independently of the other, and values from the two
systems shall not be combined. 5. Tension Test
1.5 This international standard was developed in accor-
5.1 The plates, as represented by the tension test specimens,
dance with internationally recognized principles on standard- shall conform to the tensile requirements given in Table 2.
ization established in the Decision on Principles for the
6. Keywords
Development of International Standards, Guides and Recom-
6.1 carbon steel; plates; structural steel; toughness; welded
construction
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
2
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved July 1, 2020. Published July 2020. Originally approved contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
in 1966. Last previous edition approved in 2013 as A573/A573M – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/A0573_A0573M-20. 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 ----------------------
A573/A573M−20
TABLE 1 Chemical Requirements (Heat Analysis)
Composition, %
Grade 58 Grade 65 Grade 70
[400] [450] [485]
Carbon, max:
1
⁄2 in. [13 mm] and under 0.23 0.24 0.27
1 1
Over ⁄2 in. [13 mm] to 1 ⁄2 in., 0.23 0.26 0.28
[40 mm], incl
A
Manganese 0.60–0.90 0.85–1.20 0.85–1.20
Phosphorus, max 0.030 0.030 0.030
Sulfur, max 0.030 0.030 0.030
Silicon 0.10–0.35 0.15–0.40 0.15–0.40
B
Aluminum (total), min 0.020 0.020 0.020
A
For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage points above the specified maximum for
manganese is permitted, up to a maximum of 1.50 % for Grades 58 and 65; and up to a maximum of 1.60 % for Grade 70.
B
Minimum aluminum content does not apply to plates with widths up to and including 15 in. [380 mm].
A
TABLE 2 Tensile Requirements
Grade 58 Grade 65 Grade 70
[400] [450] [485]
Tensile strength, ksi 58–71 65–77 70–90
[MPa] [400–490] [450–530] [485–620]
Yield point, min, ksi 32 35 42
[MPa] [220] [240] [290]
Elongation in 8 in. [200 21 20 18
B,C
mm] min, %
Elongation in 2 in. [50 2
...

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: A573/A573M − 13 A573/A573M − 20
Standard Specification for
1
Structural Carbon Steel Plates of Improved Toughness
This standard is issued under the fixed designation A573/A573M; 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 structural quality carbon-manganese-silicon steel plates in three tensile strength ranges intended
primarily for service at atmospheric temperatures where improved notch toughness is important. ranges.
NOTE 1—This specification was originally intended primarily for construction of storage tanks used at ambient temperatures when improved toughness
was needed over that available in semi-killed ingot cast steels.
1.2 Plates covered by this specification are limited to a maximum thickness of 1.5 in. [40 mm].
1.3 If the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or
service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.
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 necessarily exact equivalents; therefore, each system is to to ensure
conformance with the standard, each system shall be used independently of the other without combining values in any way. other,
and values from the two systems shall not be combined.
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:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
3. General Requirements for Delivery
3.1 Plates furnished under this specification shall conform to the requirements of the current edition of Specification A6/A6M,
unless a conflict exists in which case this specification shall prevail.
4. Materials and Manufacture
4.1 The steel shall be made to fine grain practice.
4. Chemical Composition
4.1 The heat analysis shall conform to the requirements given in Table 1.
4.2 The product analysis shall conform to the requirements given in Table 1 subject to the product analysis tolerances in
Specification A6/A6M.
5. Tension Test
5.1 The plates, as represented by the tension test specimens, shall conform to the tensile requirements given in Table 2.
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 A01.02
on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Nov. 15, 2013July 1, 2020. Published November 2013July 2020. Originally approved in 1966. Last previous edition approved in 20092013 as
A573/A573M – 05 (2009).A573/A573M – 13. DOI: 10.1520/A0573_A0573M-13.10.1520/A0573_A0573M-20.
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’sstandard’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 ----------------------
A573/A573M − 20
TABLE 1 Chemical Requirements (Heat Analysis)
Composition, %
Grade 58 Grade 65 Grade 70
[400] [450] [485]
Carbon, max:
1
⁄2 in. [13 mm] and under 0.23 0.24 0.27
1 1
Over ⁄2 in. [13 mm] to 1 ⁄2 in., 0.23 0.26 0.28
[40 mm], incl
A
Manganese 0.60–0.90 0.85–1.20 0.85–1.20
Phosphorus, max 0.030 0.030 0.030
Sulfur, max 0.030 0.030 0.030
Silicon 0.10–0.35 0.15–0.40 0.15–0.40
B
Aluminum (total), min 0.020 0.020 0.020
A
For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage points above the specified maximum for
manganese is permitted, up to a maximum of 1.50 % for Grades 58 and 65; and up to a maximum of
...