ASTM A724/A724M-09

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:A724/A724M–04 Designation: A724/A724M – 09
Standard Specification for
Pressure Vessel Plates, Carbon-Manganese-Silicon Steel,
1
Quenched and Tempered, for Welded Pressure Vessels
This standard is issued under the fixed designationA724/A724M; 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*
2
1.1 This specification covers three grades of carbon-manganese-silicon steel, designated GradesA, B, and C. Grade C may be
produced with a boron addition. The plates are quenched and tempered and are intended for welded-layered pressure vessels.
1.2 The maximum thickness of plates supplied under this specification is limited only by the capability of the chemical
composition to meet the specified mechanical requirements. However, current practice normally limits the maximum thickness to
7
⁄8 in. [22 mm] for Grades A and B, and to 2 in. [50 mm] for Grade C.
1.3 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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 the specification.
2. Referenced Documents
3
2.1 ASTM Standards:
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
3. General Requirements and Ordering Information
3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline the
testing and retesting methods and procedures, permissible variations in dimensions and weight, quality and repair of defects,
marking, loading, etc.
3.2Specification . These requirements outline the testing and retesting methods and procedures, permitted variations in
dimensions and weight, quality and repair of defects, marking, loading, and ordering information.
3.2 In addition to the basic requirements of this specification, certain supplementary requirements are available when additional
control, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementary
requirements in this specification and to the detailed requirements in Specification A20/A20Malso establishes the rules for the
ordering information that should be complied with when purchasing material to this specification.
3.3In addition to the basic requirements of this specification, certain supplementary requirements are available when additional
control, testing, or examination is required to meet end use requirements. These include:
3.3.1Vacuum treatment,
3.3.2Additional or special tension testing,
3.3.3Impact testing, and
3.3.4Nondestructive examination.
3.4The purchaser is referred to the listed supplementary requirements in this specification and to the detailed requirements in
Specification A20/A20M.
3.5If3.3 If the requirements of this specification are in conflict with the requirements of Specification A20/A20M, the
requirements of this specification shall prevail.
4. Manufacture
4.1 Steelmaking Process—The steel shall be killed and shall conform to the fine austenitic grain size requirement of
Specification A20/A20M.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.11
on Steel Plates for Boilers and Pressure Vessels.
Current edition approved JulyOct. 1, 2004.2009. Published July 2004.October 2009. Originally approved in 1975. Last previous edition approved in 19992004 as
A724/A724M–99.A724/A724M – 04. DOI: 10.1520/A0724_A0724M-049.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-724/SA-724M in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary 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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A724/A724M – 09
5. Heat Treatment
5.1 All plates shall be quenched from a t
...

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:A724/A724M–04 Designation: A724/A724M – 09
Standard Specification for
Pressure Vessel Plates, Carbon-Manganese-Silicon Steel,
1
Quenched and Tempered, for Welded Pressure Vessels
This standard is issued under the fixed designationA724/A724M; 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*
2
1.1 This specification covers three grades of carbon-manganese-silicon steel, designated GradesA, B, and C. Grade C may be
produced with a boron addition. The plates are quenched and tempered and are intended for welded-layered pressure vessels.
1.2 The maximum thickness of plates supplied under this specification is limited only by the capability of the chemical
composition to meet the specified mechanical requirements. However, current practice normally limits the maximum thickness to
7
⁄8 in. [22 mm] for Grades A and B, and to 2 in. [50 mm] for Grade C.
1.3 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 exact equivalents; therefore, each system must be used
independently of the other. Combining values from the two systems may result in nonconformance with the specification.
2. Referenced Documents
3
2.1 ASTM Standards:
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
3. General Requirements and Ordering Information
3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline the
testing and retesting methods and procedures, permissible variations in dimensions and weight, quality and repair of defects,
marking, loading, etc.
3.2Specification . These requirements outline the testing and retesting methods and procedures, permitted variations in
dimensions and weight, quality and repair of defects, marking, loading, and ordering information.
3.2 In addition to the basic requirements of this specification, certain supplementary requirements are available when additional
control, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementary
requirements in this specification and to the detailed requirements in Specification A20/A20Malso establishes the rules for the
ordering information that should be complied with when purchasing material to this specification.
3.3In addition to the basic requirements of this specification, certain supplementary requirements are available when additional
control, testing, or examination is required to meet end use requirements. These include:
3.3.1Vacuum treatment,
3.3.2Additional or special tension testing,
3.3.3Impact testing, and
3.3.4Nondestructive examination.
3.4The purchaser is referred to the listed supplementary requirements in this specification and to the detailed requirements in
Specification A20/A20M.
3.5If3.3 If the requirements of this specification are in conflict with the requirements of Specification A20/A20M, the
requirements of this specification shall prevail.
4. Manufacture
4.1 Steelmaking Process—The steel shall be killed and shall conform to the fine austenitic grain size requirement of
Specification A20/A20M.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.11
on Steel Plates for Boilers and Pressure Vessels.
Current edition approved JulyOct. 1, 2004.2009. Published July 2004.October 2009. Originally approved in 1975. Last previous edition approved in 19992004 as
A724/A724M–99.A724/A724M – 04. DOI: 10.1520/A0724_A0724M-049.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-724/SA-724M in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary 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 ----------------------
A724/A724M – 09
5. Heat Treatment
5.1 All plates shall
...