ASTM A703/A703M-20a
(Specification)Standard Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
Standard Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
ABSTRACT
This specification covers steel castings, general requirements, for pressure-containing parts. The steel shall be made by open-hearth or electric-furnace process, with or without separate refining such as argon-oxygen-decarburization (AOD), unless otherwise designated by the individual specification. Ferritic and martensitic steel shall be cooled after pouring to provide substantially complete transformation of austenite prior to heat treatment to enhance mechanical properties. The material shall conform to the specified chemical composition requirements. An analysis of each heat shall be made by the manufacturer to determine the percentages of the elements specified. The mechanical test methods and definitions are presented in details. One tension test shall be made from each heat, and shall conform to the tensile requirements specified. Test coupons shall be cast from the same heat as the castings represented, except that for investment castings, the test coupons shall be cast in the same type of mold as the castings. After machining, each casting shall be tested under specified hydrostatic shell test pressures in the applicable steel rating for which the casting is designed.
SCOPE
1.1 This specification2 covers a group of common requirements that, unless otherwise specified in an individual specification, shall apply to steel castings for pressure-containing parts under each of the following ASTM specifications:
Title of Specification
ASTM Designation
Steel Castings, Carbon, Suitable for Fusion Welding,
A216/A216M
for High-Temperature Service
Steel Castings, Martensitic Stainless and Alloy, for
A217/A217M
Pressure-Containing Parts, Suitable for High-
Temperature Service
Castings, Austenitic, for Pressure-Containing
A351/A351M
Parts
Steel Castings, Ferritic and Martensitic, for Pressure-
A352/A352M
Containing Parts, Suitable for Low-Temperature
Service
Steel Castings, Alloy, Specially Heat-Treated, for
A389/A389M
Pressure-Containing Parts, Suitable for High-
Temperature Service
Steel Castings Suitable for Pressure Service
A487/A487M
Castings, Iron-Nickel-Chromium and Nickel
A990/A990M
Alloys, Specially Controlled for Pressure-Retaining Parts for Corrosive Service
Castings, Austenitic-Ferritic (Duplex)
A995/A995M
Stainless Steel, for Pressure-Containing Parts
1.2 This specification also covers a group of supplementary requirements which may be applied to the above specifications as indicated therein. These are provided for use when additional testing or inspection is desired and apply only when specified individually by the purchaser in the order.
1.3 In case of conflict between the requirements of the individual specification and this general specification, the former shall prevail.
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 nonconformance 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.
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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:A703/A703M −20a
Standard Specification for
Steel Castings, General Requirements, for Pressure-
1
Containing Parts
This standard is issued under the fixed designationA703/A703M; 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* each system may not be exact equivalents; therefore, each
2 system shall be used independently of the other. Combining
1.1 This specification covers a group of common require-
values from the two systems may result in nonconformance
ments that, unless otherwise specified in an individual
with the standard.
specification, shall apply to steel castings for pressure-
1.5 This international standard was developed in accor-
containing parts under each of the following ASTM specifica-
dance with internationally recognized principles on standard-
tions:
ization established in the Decision on Principles for the
Title of Specification ASTM Designation
Development of International Standards, Guides and Recom-
Steel Castings, Carbon, Suitable for Fusion Welding, A216/A216M
mendations issued by the World Trade Organization Technical
for High-Temperature Service
Barriers to Trade (TBT) Committee.
Steel Castings, Martensitic Stainless and Alloy, for A217/A217M
Pressure-Containing Parts, Suitable for High-
2. Referenced Documents
Temperature Service
Castings, Austenitic, for Pressure-Containing A351/A351M
3
2.1 ASTM Standards:
Parts
A216/A216M SpecificationforSteelCastings,Carbon,Suit-
Steel Castings, Ferritic and Martensitic, for Pressure- A352/A352M
Containing Parts, Suitable for Low-Temperature
able for Fusion Welding, for High-Temperature Service
Service
A217/A217M Specification for Steel Castings, Martensitic
Steel Castings, Alloy, Specially Heat-Treated, for A389/A389M
Pressure-Containing Parts, Suitable for High- Stainless and Alloy, for Pressure-Containing Parts, Suit-
Temperature Service
able for High-Temperature Service
Steel Castings Suitable for Pressure Service A487/A487M
A351/A351M Specification for Castings, Austenitic, for
Castings, Iron-Nickel-Chromium and Nickel A990/A990M
Alloys, Specially Controlled for Pressure-Retaining Pressure-Containing Parts
Parts for Corrosive Service
A352/A352M Specification for Steel Castings, Ferritic and
Castings, Austenitic-Ferritic (Duplex) A995/A995M
Martensitic, for Pressure-Containing Parts, Suitable for
Stainless Steel, for Pressure-Containing Parts
Low-Temperature Service
1.2 This specification also covers a group of supplementary
A370 Test Methods and Definitions for Mechanical Testing
requirements which may be applied to the above specifications
of Steel Products
as indicated therein. These are provided for use when addi-
A380/A380M Practice for Cleaning, Descaling, and Passi-
tional testing or inspection is desired and apply only when
vation of Stainless Steel Parts, Equipment, and Systems
specified individually by the purchaser in the order.
A389/A389M Specification for Steel Castings, Alloy, Spe-
1.3 In case of conflict between the requirements of the
cially Heat Treated, for Pressure-Containing Parts, Suit-
individual specification and this general specification, the
able for High-Temperature Service
former shall prevail.
A487/A487M Specification for Steel Castings Suitable for
Pressure Service
1.4 The values stated in either SI units or inch-pound units
A488/A488M Practice for Steel Castings, Welding, Qualifi-
are to be regarded separately as standard. The values stated in
cations of Procedures and Personnel
A609/A609M Practice for Castings, Carbon, Low-Alloy,
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
and Martensitic Stainless Steel, Ultrasonic Examination
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
Thereof
A01.18 on Castings.
Current edition approved Nov. 1, 2020. Published November 2020. Originally
3
approved in 1974. Last previous edition approved in 2020 as A703/A703M – 20. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/A0703_A0703M-20A. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-703/SA-703M in Section II of that Code. the ASTM website.
*A Summary of Changes section appears at the
...
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: A703/A703M − 20 A703/A703M − 20a
Standard Specification for
Steel Castings, General Requirements, for Pressure-
1
Containing Parts
This standard is issued under the fixed designation A703/A703M; 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*
2
1.1 This specification covers a group of common requirements that, unless otherwise specified in an individual specification, shall
apply to steel castings for pressure-containing parts under each of the following ASTM specifications:
Title of Specification ASTM Designation
Steel Castings, Carbon, Suitable for Fusion Welding, A216/A216M
for High-Temperature Service
Steel Castings, Martensitic Stainless and Alloy, for A217/A217M
Pressure-Containing Parts, Suitable for High-
Temperature Service
Castings, Austenitic, for Pressure-Containing A351/A351M
Parts
Steel Castings, Ferritic and Martensitic, for Pressure- A352/A352M
Containing Parts, Suitable for Low-Temperature
Service
Steel Castings, Alloy, Specially Heat-Treated, for A389/A389M
Pressure-Containing Parts, Suitable for High-
Temperature Service
Steel Castings Suitable for Pressure Service A487/A487M
Castings, Iron-Nickel-Chromium and Nickel A990/A990M
Alloys, Specially Controlled for Pressure-Retaining
Parts for Corrosive Service
Castings, Austenitic-Ferritic (Duplex) A995/A995M
Stainless Steel, for Pressure-Containing Parts
1.2 This specification also covers a group of supplementary requirements which may be applied to the above specifications as
indicated therein. These are provided for use when additional testing or inspection is desired and apply only when specified
individually by the purchaser in the order.
1.3 In case of conflict between the requirements of the individual specification and this general specification, the former shall
prevail.
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
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 July 1, 2020Nov. 1, 2020. Published August 2020November 2020. Originally approved in 1974. Last previous edition approved in 20182020
as A703/A703M – 18a.A703/A703M – 20. DOI: 10.1520/A0703_A0703M-20.10.1520/A0703_A0703M-20A.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-703/SA-703M in Section II of that Code.
*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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A703/A703M − 20a
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 nonconformance 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
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
A351/A351M Specification for Castings, Austenitic, for Pressure-Containing Parts
A352/A352M Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-
Temperature Service
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A380/A380M Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A389/A389M Specification for Steel Castings, Alloy, Specially Heat Treated, for Pressure-Containing Parts, Suitable for
High-Temperature Service
A487/A487M Specification for Steel Castings Suitable for Pressure Service
A488/A488M Practice for Steel Castings, Welding, Qu
...
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