ASTM A522/A522M-22

Standard Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service

ABSTRACT
This specification covers the 8 and 9% nickel-alloy steel forged or rolled flanges, fittings, valves, and parts intended for use in welded pressure vessels for low-temperature service. Two types of materials are specified according to the chemical composition: type I and type II. Materials for forgings shall consist of ingots, or either forged or rolled blooms, billets, or bars. Except for all types of flanges, elbows, return bends, tees, and header tees, other parts including NPS 4 may be machined from hot-rolled or forged bar. The steel shall conform to the specified chemical requirements for carbon, manganese, phosphorus, sulfur, silicon, and nickel. The following methods of heat treatment shall be used: quenched and tempered and double normalized and tempered. Two tests shall be done to meet the mechanical requirements of the material: tension test and Charpy impact test.
SCOPE
1.1 This specification2 covers 8 and 9 % nickel-alloy steel forged or rolled flanges, fittings, valves, and parts intended for use in welded pressure vessels for low-temperature service. The specification is applicable to forgings with maximum section thickness of 3 in. [75 mm] in the double normalized and tempered condition and 5 in. [125 mm] in the quenched and tempered condition. Forgings under this specification are intended for service at operating temperatures not lower than −320 °F [−196 °C] for Type I or −275 °F [−170 °C] for Type II or higher than 250 °F [121 °C].  
1.2 Material under this specification is available in two types having different chemical compositions as follows:    
Type  
Nominal Nickel Content, %    
I
II  
9
8    
1.3 This specification is expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.  
1.4 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 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.  
1.5 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.

General Information

• Status: Published
• Publication Date: 31-Aug-2022
• ICS: 23.040.40 - Metal fittings
• 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:A522/A522M −22
Standard Specification for
Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges,
1
Fittings, Valves, and Parts for Low-Temperature Service
This standard is issued under the fixed designationA522/A522M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2 3
1.1 This specification covers 8 and 9% nickel-alloy steel 2.1 ASTM Standards:
forged or rolled flanges, fittings, valves, and parts intended for A788/A788MSpecification for Steel Forgings, General Re-
use in welded pressure vessels for low-temperature service. quirements
The specification is applicable to forgings with maximum A961/A961MSpecification for Common Requirements for
section thickness of 3 in. [75 mm] in the double normalized Steel Flanges, Forged Fittings, Valves, and Parts for
and tempered condition and 5 in. [125 mm] in the quenched Piping Applications
and tempered condition. Forgings under this specification are
3. General Requirements and Ordering Information
intended for service at operating temperatures not lower than
−320 °F [−196 °C] for Type I or −275 °F [−170 °C] for Type
3.1 Product furnished to this specification shall conform to
II or higher than 250 °F [121 °C].
the requirements of Specification A961/A961M, including any
1.2 Material under this specification is available in two supplementary requirements that are indicated in the purchase
order.FailuretocomplywiththerequirementsofSpecification
types having different chemical compositions as follows:
A961/A961M constitutes nonconformance with this specifica-
Type Nominal Nickel Content, %
I 9 tion.
II 8
3.2 It is the purchaser’s responsibility to specify in the
1.3 This specification is expressed in both inch-pound units
purchase order all ordering information necessary to furnish
andSIunits.However,unlesstheorderspecifiestheapplicable
the needed material. Examples of such information include but
“M” specification designation (SI units), the material shall be
are not limited to the ordering information in Specification
furnished to inch-pound units.
A961/A961M and following:
1.4 The values stated in either inch-pound units or SI units
3.2.1 Any supplementary requirements, and
are to be regarded separately as standard. Within the text, the
3.2.2 Additional requirements, (See 4.6, 5.2, 6.1, 7.2, and
SI units are shown in brackets. The values stated in each
10.3).
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values
4. Materials and Manufacture
from the two systems may result in non-conformance with the
4.1 The steel shall be produced in accordance with the
standard.
melting process section of Specification A788/A788M.
1.5 This international standard was developed in accor-
4.2 Material for forgings shall consist of ingots, or either
dance with internationally recognized principles on standard-
forged or rolled blooms, billets, or bars.
ization established in the Decision on Principles for the
4.3 The finished product shall be a forging as defined in the
Development of International Standards, Guides and Recom-
Terminology Section of Specification A788/A788M.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4.4 Hollow parts may be made from hot-rolled or forged
bar, provided the longitudinal axis of the part is parallel to the
longitudinal axis of the bar. Other parts up to and including
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
NPS 4 may be machined from hot-rolled or forged bar.
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.22onSteelForgingsandWroughtFittingsforPipingApplicationsandBolting
Materials for Piping and Special Purpose Applications.
Current edition approved Sept. 1, 2022. Published October 2022. Originally
3
approved in 1964. Last previous edition approved in 2019 as A522/ For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ε1
A522M–14(2019) . DOI: 10.1520/A0522_A0522M-22. contact ASTM Customer Service at [e-mail]. 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-522 in Section II of that Code. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor
...

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: A522/A522M − 14 (Reapproved 2019) A522/A522M − 22
Standard Specification for
Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges,
1
Fittings, Valves, and Parts for Low-Temperature Service
This standard is issued under the fixed designation A522/A522M; 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
ε NOTE—Editorially corrected Table 3 in July 2021.
1. Scope Scope*
2
1.1 This specification covers 8 and 9 % nickel-alloy steel forged or rolled flanges, fittings, valves, and parts intended for use in
welded pressure vessels for low-temperature service. The specification is applicable to forgings with maximum section thickness
of 3 in. [75 mm] in the double normalized and tempered condition and 5 in. [125 mm] in the quenched and tempered condition.
Forgings under this specification are intended for service at operating temperatures not lower than −320 °F [−196 °C] for Type I
or −275 °F [−170 °C] for Type II or higher than 250 °F [121 °C].
1.2 Material under this specification is available in two types having different chemical compositions as follows:
Type Nominal Nickel Content, %
I 9
II 8
1.3 This specification is expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M”
specification designation (SI units), the material shall be furnished to inch-pound units.
1.4 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 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.
1.5 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:
A788/A788M Specification for Steel Forgings, General Requirements
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 Sept. 1, 2019Sept. 1, 2022. Published September 2019October 2022. Originally approved in 1964. Last previous edition approved in 20142019
ε1
as A522/A522M – 14.A522/A522M – 14 (2019) . DOI: 10.1520/A0522_A0522M-14R19E01.10.1520/A0522_A0522M-22.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-522 in Section II of that Code.
3
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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A522/A522M − 22
A961/A961M Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping
Applications
3. General Requirements and Ordering Information
3.1 Product furnished to this specification shall conform to the requirements of Specification A961/A961M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the requirements of Specification
A961/A961M constitutes nonconformance with this specification.
3.2 It is the purchaser’s responsibility to specify in the purchase order all ordering information necessary to furnish the needed
material. Examples of such information include but are not limited to the ordering information in Specification A961/A961M and
following:
3.2.1 Any supplementary requirements, and
3.2.2 Additional requirements, (See 4.54.6, 5.2, 6.1, 7.2, and 10.3).
4. Materials and Manufacture
4.1 The steel shall be produced in accordance with the melting process section of Spec
...