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ASTM A645/A645M-10

Current Revision

Standard Specification for Pressure Vessel Plates, 5&#x2009;% and 5<fraction><num>1</num> <den>2</den></fraction>&#x2009;% Nickel Alloy Steels, Specially Heat Treated

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1.1 This specification covers specially heat treated 5 % and 5 ½ % nickel alloy steel plates intended primarily for welded pressure vessels for service at low or cryogenic temperatures.

1.2 The maximum thickness of plates which can be supplied under this specification is limited only by the capacity of the material to meet the specified requirements.

1.3 This material is susceptible to magnetization. Use of magnets in handling after heat treatment should be avoided if residual magnetism would be detrimental to subsequent fabrication or service.

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.

1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

This specification covers specially heat treated 5% and 5 1/2% nickel alloy steel plates intended primarily for welded pressure vessels for service at low or cryogenic temperatures. Plates are classified as Grade A and Grade B. The steel shall be killed and shall conform to the fine austenitic grain size requirements specified. Plates shall be heat treated in accordance with the required specifications. The steel shall conform to the chemical requirements specified. Tensions tests and impacts tests shall be made to meet the mechanical requirements specified.


SDO ASTM: ASTM International
Document Number A645
Publication Date Oct. 1, 2010
Language en - English
Page Count 4
Revision Level 10
Supercedes
Committee A01.11
Publish Date Document Id Type View
Oct. 1, 2010 A0645_A0645M-10 Revision
May 1, 2005 A0645_A0645M-05 Revision
June 10, 1999 A0645_A0645M-99A Revision
Sept. 1, 2022 A0645_A0645M-10R22 Reaffirmation
March 1, 2016 A0645_A0645M-10R16 Reaffirmation