ASTM A351/A351M-18e1
(Specification)Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
ABSTRACT
This specification covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts. The steel shall be made by the electric furnace process with or without separate refining such as argon-oxygen decarburization. All castings shall receive heat treatment followed by quench in water or rapid cool by other means as noted. The steel shall conform to both chemical composition and tensile property requirements.
SCOPE
1.1 This specification2 covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts (Note 1).
Note 1: Carbon steel castings for pressure-containing parts are covered by Specification A216/A216M, low-alloy steel castings by Specification A217/A217M, and duplex stainless steel castings by Specification A995/A995M.
1.2 A number of grades of austenitic steel castings are included in this specification. Since these grades possess varying degrees of suitability for service at high temperatures or in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and high-temperature or corrosion-resistant characteristics, or both.
1.2.1 Because of thermal instability, Grades CE20N, CF3A, CF3MA, and CF8A are not recommended for service at temperatures above 800 °F [425 °C].
1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The Supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.
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.
1.4.1 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M-specification designation (SI units), the inch-pound units shall apply. Within the text, the SI units are shown in brackets or parentheses.
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.
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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.
´1
Designation:A351/A351M −18
Standard Specification for
1
Castings, Austenitic, for Pressure-Containing Parts
This standard is issued under the fixed designationA351/A351M; 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
ε NOTE—Footnote B of Table 3 was editorially corrected in August 2019.
1. Scope* 1.4.1 This specification is expressed in both inch-pound
2 units and in SI units; however, unless the purchase order or
1.1 This specification covers austenitic steel castings for
contract specifies the applicable M-specification designation
valves, flanges, fittings, and other pressure-containing parts
(SI units), the inch-pound units shall apply.Within the text, the
(Note 1).
SI units are shown in brackets or parentheses.
NOTE 1—Carbon steel castings for pressure-containing parts are cov-
1.5 This international standard was developed in accor-
ered by Specification A216/A216M, low-alloy steel castings by Specifi-
dance with internationally recognized principles on standard-
cation A217/A217M, and duplex stainless steel castings by Specification
A995/A995M. ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.2 A number of grades of austenitic steel castings are
mendations issued by the World Trade Organization Technical
included in this specification. Since these grades possess
Barriers to Trade (TBT) Committee.
varying degrees of suitability for service at high temperatures
or in corrosive environments, it is the responsibility of the
2. Referenced Documents
purchaser to determine which grade shall be furnished. Selec-
3
2.1 ASTM Standards:
tion will depend on design and service conditions, mechanical
A216/A216M SpecificationforSteelCastings,Carbon,Suit-
properties, and high-temperature or corrosion-resistant
able for Fusion Welding, for High-Temperature Service
characteristics, or both.
A217/A217M Specification for Steel Castings, Martensitic
1.2.1 Because of thermal instability, Grades CE20N, CF3A,
Stainless and Alloy, for Pressure-Containing Parts, Suit-
CF3MA, and CF8A are not recommended for service at
able for High-Temperature Service
temperatures above 800 °F [425 °C].
A488/A488M Practice for Steel Castings, Welding, Qualifi-
1.3 Supplementary requirements of an optional nature are
cations of Procedures and Personnel
provided for use at the option of the purchaser. The Supple-
A703/A703M Specification for Steel Castings, General
mentary requirements shall apply only when specified indi-
Requirements, for Pressure-Containing Parts
vidually by the purchaser in the purchase order or contract.
A985/A985M Specification for Steel Investment Castings
General Requirements, for Pressure-Containing Parts
1.4 The values stated in either SI units or inch-pound units
A995/A995M Specification for Castings, Austenitic-Ferritic
are to be regarded separately as standard. The values stated in
(Duplex) Stainless Steel, for Pressure-Containing Parts
each system may not be exact equivalents; therefore, each
2.2 Manufacturers Standardization Society of the Valve and
system shall be used independently of the other. Combining
4
Fittings Industry Standard:
values from the two systems may result in non-conformance
SP-55 Quality Standard for Steel Castings for Valves,
with the standard.
Flanges, and Fittings and Other Components (Visual
Method)
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
3
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.18 on Castings. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved May 1, 2018. Published May 2018. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1952. Last previous edition approved in 2016 as A351/A351M – 16. the ASTM website.
4
DOI: 10.1520/A0351_A0351M-18E01. AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
cation SA-351/SA-351M in Section II of that code.
hq.com.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive
...
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
´1
Designation: A351/A351M − 18
Standard Specification for
1
Castings, Austenitic, for Pressure-Containing Parts
This standard is issued under the fixed designation A351/A351M; 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
ε NOTE—Footnote B of Table 3 was editorially corrected in August 2019.
1. Scope* 1.4.1 This specification is expressed in both inch-pound
2 units and in SI units; however, unless the purchase order or
1.1 This specification covers austenitic steel castings for
contract specifies the applicable M-specification designation
valves, flanges, fittings, and other pressure-containing parts
(SI units), the inch-pound units shall apply. Within the text, the
(Note 1).
SI units are shown in brackets or parentheses.
NOTE 1—Carbon steel castings for pressure-containing parts are cov-
1.5 This international standard was developed in accor-
ered by Specification A216/A216M, low-alloy steel castings by Specifi-
dance with internationally recognized principles on standard-
cation A217/A217M, and duplex stainless steel castings by Specification
ization established in the Decision on Principles for the
A995/A995M.
Development of International Standards, Guides and Recom-
1.2 A number of grades of austenitic steel castings are
mendations issued by the World Trade Organization Technical
included in this specification. Since these grades possess
Barriers to Trade (TBT) Committee.
varying degrees of suitability for service at high temperatures
or in corrosive environments, it is the responsibility of the
2. Referenced Documents
purchaser to determine which grade shall be furnished. Selec-
3
2.1 ASTM Standards:
tion will depend on design and service conditions, mechanical
A216/A216M Specification for Steel Castings, Carbon, Suit-
properties, and high-temperature or corrosion-resistant
able for Fusion Welding, for High-Temperature Service
characteristics, or both.
A217/A217M Specification for Steel Castings, Martensitic
1.2.1 Because of thermal instability, Grades CE20N, CF3A,
Stainless and Alloy, for Pressure-Containing Parts, Suit-
CF3MA, and CF8A are not recommended for service at
able for High-Temperature Service
temperatures above 800 °F [425 °C].
A488/A488M Practice for Steel Castings, Welding, Qualifi-
1.3 Supplementary requirements of an optional nature are
cations of Procedures and Personnel
provided for use at the option of the purchaser. The Supple-
A703/A703M Specification for Steel Castings, General
mentary requirements shall apply only when specified indi-
Requirements, for Pressure-Containing Parts
vidually by the purchaser in the purchase order or contract.
A985/A985M Specification for Steel Investment Castings
General Requirements, for Pressure-Containing Parts
1.4 The values stated in either SI units or inch-pound units
A995/A995M Specification for Castings, Austenitic-Ferritic
are to be regarded separately as standard. The values stated in
(Duplex) Stainless Steel, for Pressure-Containing Parts
each system may not be exact equivalents; therefore, each
2.2 Manufacturers Standardization Society of the Valve and
system shall be used independently of the other. Combining
4
Fittings Industry Standard:
values from the two systems may result in non-conformance
SP-55 Quality Standard for Steel Castings for Valves,
with the standard.
Flanges, and Fittings and Other Components (Visual
Method)
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
3
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.18 on Castings. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved May 1, 2018. Published May 2018. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1952. Last previous edition approved in 2016 as A351/A351M – 16. the ASTM website.
4
DOI: 10.1520/A0351_A0351M-18E01. Available from Manufacturers Standardization Society of the Valve and Fittings
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
cation SA-351/SA-351M in Section II of that code. hq.com.
*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 ------------------
...
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.
´1
Designation: A351/A351M − 18 A351/A351M − 18
Standard Specification for
1
Castings, Austenitic, for Pressure-Containing Parts
This standard is issued under the fixed designation A351/A351M; 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
ε NOTE—Footnote B of Table 3 was editorially corrected in August 2019.
1. Scope*
2
1.1 This specification covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts (Note 1).
NOTE 1—Carbon steel castings for pressure-containing parts are covered by Specification A216/A216M, low-alloy steel castings by Specification
A217/A217M, and duplex stainless steel castings by Specification A995/A995M.
1.2 A number of grades of austenitic steel castings are included in this specification. Since these grades possess varying degrees
of suitability for service at high temperatures or in corrosive environments, it is the responsibility of the purchaser to determine
which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and
high-temperature or corrosion-resistant characteristics, or both.
1.2.1 Because of thermal instability, Grades CE20N, CF3A, CF3MA, and CF8A are not recommended for service at
temperatures above 800 °F [425 °C].
1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The Supplementary
requirements shall apply only when specified individually by the purchaser in the purchase order or contract.
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.
1.4.1 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract
specifies the applicable M-specification designation (SI units), the inch-pound units shall apply. Within the text, the SI units are
shown in brackets or parentheses.
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
3
2.1 ASTM Standards:
A216/A216M Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service
A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for
High-Temperature Service
A488/A488M Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
A703/A703M Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
A985/A985M Specification for Steel Investment Castings General Requirements, for Pressure-Containing Parts
A995/A995M Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts
4
2.2 Manufacturers Standardization Society of the Valve and Fittings Industry Standard:
SP-55 Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Components (Visual Method)
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 A01.18
on Castings.
Current edition approved May 1, 2018. Published May 2018. Originally approved in 1952. Last previous edition approved in 2016 as A351/A351M – 16. DOI:
10.1520/A0351_A0351M-18.10.1520/A0351_A0351M-18E01.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-351/SA-351M in Section II of that code.
3
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.
4
Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, V
...
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