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ASTM A 522/A522M : 2022

Current

Current

The latest, up-to-date edition.

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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

13-10-2022

£42.23
Excluding VAT

Committee
A 01
DocumentType
Standard
Pages
4
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This 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].

1.2Material under this specification is available in two types having different chemical compositions as follows:

Type

Nominal Nickel Content, %

I
II

9
8

1.3This 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.

1.4The 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.

1.5This 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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ASTM A 788/A788M : 2024 : REV A Standard Specification for Steel Forgings, General Requirements
ASTM A 961/A961M : 2024 : REV A Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
ASTM A 961/A961M : 2024 Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
ASTM A 961/A961M : 2023 Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
ASTM A 788/A788M : 2022 : REV A Standard Specification for Steel Forgings, General Requirements

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