ASTM A131/A131M-13
(Specification)Standard Specification for Structural Steel for Ships
Standard Specification for Structural Steel for Ships
ABSTRACT
This specification covers structural steel plates, shapes, bars, and rivets for use in ship construction. Materials under this specification can be categorized as ordinary strength and higher strength. Plates in all thicknesses shall be normalized or thermo-mechanical control processed while shapes and bars in all thicknesses shall be heat treated and rolled. Heat analysis of ordinary strength structural steel shall be used to determine the required chemical composition for carbon, manganese, phosphorus, sulfur, nickel, chromium, molybdenum, silicon, and copper. Same analysis shall be used to higher strength structural steel to determine the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, vanadium, aluminum, titanium, nickel, chromium, molybdenum, silicon, copper, nickel, and niobium. Materials shall conform to the required metallurgical structure which shall be evaluated by determining the average grain size. Mechanical properties such as elongation and toughness shall be evaluated using tension test and Charpy V-notch impact test.
SCOPE
1.1 This specification covers structural steel plates, shapes, bars, and rivets intended primarily for use in ship construction.
1.2 Material under this specification is available in the following categories:
1.2.1 Ordinary Strength—Grades A, B, D, and E with a specified minimum yield point of 34 ksi [235 MPa], and
1.2.2 Higher Strength—Grades AH, DH, EH, and FH with a specified minimum yield point of 46 ksi [315 MPa], 51 ksi [350 MPa], or 57 ksi [390 MPa].
1.3 Shapes and bars are normally available as Grades A, AH32, and AH36. Other grades may be furnished by agreement between the purchaser and the manufacturer.
1.4 The maximum thickness of products furnished under this specification is 4 in. [100 mm] for plates and 2 in. [50 mm] for shapes and bars.
1.5 When 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.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
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:A131/A131M −13
StandardSpecification for
1
Structural Steel for Ships
This standard is issued under the fixed designationA131/A131M; 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 Department of Defense.
1. Scope* Structural Steel Bars, Plates, Shapes, and Sheet Piling
A370 Test Methods and Definitions for Mechanical Testing
1.1 This specification covers structural steel plates, shapes,
of Steel Products
bars, and rivets intended primarily for use in ship construction.
E112 Test Methods for Determining Average Grain Size
1.2 Material under this specification is available in the
3. Terminology
following categories:
1.2.1 Ordinary Strength—Grades A, B, D, and E with a
3.1 Definitions of Terms Specific to This Standard:
specified minimum yield point of 34 ksi [235 MPa], and
3.1.1 control rolling, n—a steel treatment that consists of
1.2.2 Higher Strength—GradesAH, DH, EH, and FH with a
final rolling within the range used for normalizing heat
specified minimum yield point of 46 ksi [315 MPa], 51 ksi
treatments so that the austenite completely recrystallizes.
[350 MPa], or 57 ksi [390 MPa].
3.1.2 thermo-mechanical controlled processing, n—a steel
1.3 Shapes and bars are normally available as Grades A,
treatment that consists of strict control of the steel temperature
AH32, and AH36. Other grades may be furnished by agree-
and the rolling reduction. A high proportion of the rolling
ment between the purchaser and the manufacturer.
reduction is to be carried out close to or below the Ar
3
transformation temperature and may involve rolling towards
1.4 The maximum thickness of products furnished under
the lower end of the temperature range of the intercritical
this specification is 4 in. [100 mm] for plates and 2 in. [50 mm]
dual-phase region, thus permitting little if any recrystallization
for shapes and bars.
of the austenite. The process may involve accelerated cooling
1.5 When the steel is to be welded, it is presupposed that a
on completion of rolling.
welding procedure suitable for the grade of steel and intended
4. Ordering Information
use or service will be utilized. See Appendix X3 of Specifica-
tion A6/A6M for information on weldability.
4.1 Specification A6/A6M establishes the rules for the
1.6 The values stated in either inch-pound units or SI units ordering information that should be complied with when
are to be regarded separately as the standard. Within the text, purchasing material to this specification.
the SI units are shown in brackets. The values stated in each
4.2 Additionalorderingconsiderationsspecifictothisspeci-
system are not exact equivalents; therefore, each system must
fication are:
be used independently of the other. Combining values from the
4.2.1 Condition (control rolled or thermo-mechanical con-
two systems may result in nonconformance with this specifi-
trol processed, if applicable).
cation.
5. Materials and Manufacture
2. Referenced Documents
5.1 The steel shall be killed.
2
2.1 ASTM Standards:
5.2 GradesD,E,AH32,AH36,AH40,DH32,DH36,DH40,
A6/A6M Specification for General Requirements for Rolled
EH32, EH36, EH40, FH32, FH36, and FH40 shall be made
using a fine grain practice. For ordinary-strength grades,
aluminum shall be used to obtain grain refinement. For
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
higher-strength grades, aluminum, vanadium, or columbium
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
(niobium) may be used for grain refinement.
Current edition approved Nov. 1, 2013. Published November 2013. Originally
5.3 Plates in all thicknesses ordered to Grade E shall be
approved in 1931. Last previous edition approved in 2008 as A131/A131M – 08.
DOI: 10.1520/A0131_A0131M-13.
normalized, or thermo-mechanical control processed. Plates
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
over 1 ⁄8 in. [35 mm] in thickness ordered to Grade D shall be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
normalized, control rolled, or thermo-mechanical control pro-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. cessed. See Table 1.
*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 ----------------------
A131/A131M−13
...
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: A131/A131M − 08 A131/A131M − 13
Standard Specification for
1
Structural Steel for Ships
This standard is issued under the fixed designation A131/A131M; 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 Department of Defense.
1. Scope*
1.1 This specification covers structural steel plates, shapes, bars, and rivets intended primarily for use in ship construction.
1.2 Material under this specification is available in the following categories:
1.2.1 Ordinary Strength—Grades A, B, D, and E with a specified minimum yield point of 34 ksi [235 MPa], and
1.2.2 Higher Strength—Grades AH, DH, EH, and FH with a specified minimum yield point of 46 ksi [315 MPa], 51 ksi [350
MPa], or 57 ksi [390 MPa].
1.3 Shapes and bars are normally available as Grades A, AH32, and AH36. Other grades may be furnished by agreement
between the purchaser and the manufacturer.
1.4 The maximum thickness of products furnished under this specification is 4 in. [100 mm] for plates and 2 in. [50 mm] for
shapes and bars.
1.5 When 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.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the
SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used
independently of the other. Combining values from the two systems may result in nonconformance with this specification.
2. Referenced Documents
2
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
E112 Test Methods for Determining Average Grain Size
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 control rolling, n—a steel treatment that consists of final rolling within the range used for normalizing heat treatments so
that the austenite completely recrystallizes.
3.1.2 thermo-mechanical controlled processing, n—a steel treatment that consists of strict control of the steel temperature and
the rolling reduction. A high proportion of the rolling reduction is to be carried out close to or below the Ar transformation
3
temperature and may involve rolling towards the lower end of the temperature range of the intercritical dual-phase region, thus
permitting little if any recrystallization of the austenite. The process may involve accelerated cooling on completion of rolling.
4. Ordering Information
4.1 Specification A6/A6M establishes the rules for the ordering information that should be complied with when purchasing
material to this specification.
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 March 1, 2008Nov. 1, 2013. Published March 2008November 2013. Originally approved in 1931. Last previous edition approved in 20072008
as A131/A131M – 07.A131/A131M – 08. DOI: 10.1520/A0131_A0131M-08.10.1520/A0131_A0131M-13.
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.
*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 ----------------------
A131/A131M − 13
4.2 Additional ordering considerations specific to this specification are:
4.2.1 Condition (control rolled or thermo-mechanical control processed, if applicable).
5. Materials and Manufacture
5.1 Rimmed steelsThe steel shall not be applied.killed.
5.2 Except for Grades A and B steel, semi-killed steels shall not be applied.
5.2 Grades D, E, AH32, AH36, AH40, DH32, DH36, DH40, EH32, EH36, EH40, FH32, FH36, and FH40 shall be made u
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.