ASTM A989/A989M-23

Standard Specification for Hot Isostatically-Pressed Alloy Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

ABSTRACT
This specification covers hot isostatically-pressed, powder metallurgy, alloy steel piping components such as flanges, fittings, valves, and similar parts for use in pressure systems and high-temperature services. Compacts shall be manufactured by placing a single powder blend into a can, evacuating the can, and sealing it. The entire assembly shall be heated and placed under sufficient pressure for a sufficient period of time to ensure that the final consolidated part meets the density requirements. The powder shall be prealloyed and made by a melting method such as vacuum induction melting followed by gas atomization. Alloy steels shall undergo annealing, liquid quenching, and tempering in accordance to heat treatment temperature and cooling media requirements. The steel both as a blend and as a part shall conform to the chemical composition requirements for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, columbium, tantalum, and titanium. Density measurement, microstructural examination, and hydrostatic, tension, hardness, and fatigue tests shall be performed; wherein, the specimens shall conform to the specified structural integrity and mechanical property requirements such as porosity, microstructure, tensile strength, yield strength, elongation, reduction of area, and Brinell hardness.
SCOPE
1.1 This specification covers hot isostatically-pressed, powder metallurgy, alloy steel piping components for use in pressure systems. Included are flanges, fittings, valves, and similar parts made to specified dimensions or to dimensional standards, such as in ASME Specification B16.5.  
1.2 Several grades of alloy steels are included in this specification.  
1.3 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.  
1.4 This specification is expressed in both inch-pound units and in SI units. Unless the order specifies the applicable “M” specification designation (SI units), however, the material shall be furnished to inch-pound units.  
1.5 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 the specification.  
1.6 The following safety hazards caveat pertains only to test methods portions, 8.1, 8.2, and 9.5 – 9.7 of this specification:  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and to determine the applicability of regulatory limitations prior to use.  
1.7 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-Apr-2023
• ICS: 49.025.10 - Steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.22 - Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications

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: A989/A989M − 23
Standard Specification for
Hot Isostatically-Pressed Alloy Steel Flanges, Fittings,
1
Valves, and Parts for High Temperature Service
This standard is issued under the fixed designation A989/A989M; 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 hot isostatically-pressed, pow-
der metallurgy, alloy steel piping components for use in
2. Referenced Documents
pressure systems. Included are flanges, fittings, valves, and
2
similar parts made to specified dimensions or to dimensional
2.1 ASTM Standards:
standards, such as in ASME Specification B16.5.
A275/A275M Practice for Magnetic Particle Examination of
Steel Forgings
1.2 Several grades of alloy steels are included in this
A751 Test Methods and Practices for Chemical Analysis of
specification.
Steel Products
1.3 Supplementary requirements are provided for use when
A941 Terminology Relating to Steel, Stainless Steel, Related
additional testing or inspection is desired. These shall apply
Alloys, and Ferroalloys
only when specified individually by the purchaser in the order.
A961/A961M Specification for Common Requirements for
1.4 This specification is expressed in both inch-pound units
Steel Flanges, Forged Fittings, Valves, and Parts for
and in SI units. Unless the order specifies the applicable “M”
Piping Applications
specification designation (SI units), however, the material shall
B311 Test Method for Density of Powder Metallurgy (PM)
be furnished to inch-pound units. Materials Containing Less Than Two Percent Porosity
E165/E165M Practice for Liquid Penetrant Testing for Gen-
1.5 The values stated in either inch-pound units or SI units
eral Industry
are to be regarded separately as the standard. Within the text,
E340 Practice for Macroetching Metals and Alloys
the SI units are shown in brackets. The values stated in each
E606/E606M Test Method for Strain-Controlled Fatigue
system are not exact equivalents; therefore, each system must
Testing
be used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
2.2 MSS Standard:
cation.
SP 25 Standard Marking System for Valves, Fittings,
3
Flanges, and Unions
1.6 The following safety hazards caveat pertains only to test
methods portions, 8.1, 8.2, and 9.5 – 9.7 of this specification:
2.3 ASME Specifications and Boiler and Pressure Vessel
This standard does not purport to address all of the safety
Codes:
concerns, if any, associated with its use. It is the responsibility
B16.5 Dimensional Standards for Steel Pipe Flanges and
4
of the user of this standard to establish appropriate safety,
Flanged Fittings
health, and environmental practices and to determine the
2.4 ASME Section IX Welding Qualifications:
applicability of regulatory limitations prior to use.
SFA-5.5 Specification for Low-Alloy Steel Covered Arc-
1.7 This international standard was developed in accor-
4
Welding Electrodes
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
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’s Document Summary page on
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, the ASTM website.
3
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Available from Manufacturers Standardization Society of the Valve and Fittings
A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
Materials for Piping and Special Purpose Applications. hq.com.
4
Current edition approved May 1, 2023. Published June 2023. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 1998. Last previous edition approved in 2018 as A989/A989M – 18. International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
DOI: 10.1520/A0989_A0989M-23. www.asme.org.
*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. Uni
...

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: A989/A989M − 18 A989/A989M − 23
Standard Specification for
Hot Isostatically-Pressed Alloy Steel Flanges, Fittings,
1
Valves, and Parts for High Temperature Service
This standard is issued under the fixed designation A989/A989M; 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 hot isostatically-pressed, powder metallurgy, alloy steel piping components for use in pressure
systems. Included are flanges, fittings, valves, and similar parts made to specified dimensions or to dimensional standards, such
as in ASME Specification B16.5.
1.2 Several grades of alloy steels are included in this specification.
1.3 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when
specified individually by the purchaser in the order.
1.4 This specification is expressed in both inch-pound units and in SI units. Unless the order specifies the applicable “M”
specification designation (SI units), however, the material shall be furnished to inch-pound units.
1.5 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 the specification.
1.6 The following safety hazards caveat pertains only to test methods portions, 8.1, 8.2, and 9.5 – 9.7 of this specification: This
standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety, health, and environmental practices and to determine the applicability of
regulatory limitations prior to use.
1.7 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:
A275/A275M Practice for Magnetic Particle Examination of Steel Forgings
A751 Test Methods and Practices for Chemical Analysis of Steel Products
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
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 A01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved March 1, 2018May 1, 2023. Published March 2018June 2023. Originally approved in 1998. Last previous edition approved in 20152018 as
A989/A989M – 15.A989/A989M – 18. DOI: 10.1520/A0989_A0989M-18. 10.1520/A0989_A0989M-23.
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’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

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A989/A989M − 23
A961/A961M Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping
Applications
B311 Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity
E165/E165M Practice for Liquid Penetrant Testing for General Industry
E340 Practice for Macroetching Metals and Alloys
E606/E606M Test Method for Strain-Controlled Fatigue Testing
2.2 MSS Standard:
3
SP 25 Standard Marking System for Valves, Fittings, Flanges, and Unions
2.3 ASME Specifications and Boiler and Pressure Vessel Codes:
4
B16.5 Dimensional Standards for Steel Pipe Flanges and Flanged Fittings
2.4 ASME Section IX Welding Qualifications:
4
SFA-5.5 Specification for Low-Alloy Steel Covered Arc-Welding Electrodes
3. Terminology
3.1 Definitions—For definition
...