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ASTM A522/A522M-06

Historical Revision

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

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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 -320oF [-196oC] for Type I or -275oF [-170oC] for Type II or higher than 250oF [o121C].

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

TypeNominal Nickel Content, %
I9
II8

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 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.


SDO ASTM: ASTM International
Document Number A522
Publication Date Dec. 1, 2006
Language en - English
Page Count 4
Revision Level 06
Supercedes
Committee A01.22
Publish Date Document Id Type View
Sept. 1, 2022 A0522_A0522M-22 Revision
Sept. 1, 2019 A0522_A0522M-14R19E01 Revision
Oct. 1, 2014 A0522_A0522M-14 Revision
Oct. 1, 2013 A0522_A0522M-13 Revision
May 1, 2011 A0522_A0522M-11 Revision
March 1, 2007 A0522_A0522M-07 Revision
Dec. 1, 2006 A0522_A0522M-06 Revision
Sept. 10, 2001 A0522_A0522M-95BR01 Revision
Sept. 10, 2001 A0522_A0522M-95B Revision
Sept. 10, 2001 A0522_A0522M-01 Revision
Sept. 1, 2019 A0522_A0522M-14R19 Reaffirmation