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About This Item

 

Full Description

1.1 This specification2 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.

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.

 

Document History

  1. ASTM A645/A645M-10(2016)

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    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

    • Most Recent
  2. ASTM A645/A645M-10


    Standard Specification for Pressure Vessel Plates, Five Percent Nickel Alloy Steel, Specially Heat Treated

    • Historical Version
  3. ASTM A645/A645M-05


    Standard Specification for Pressure Vessel Plates, Five Percent Nickel Alloy Steel, Specially Heat Treated

    • Historical Version
  4. ASTM A645/A645M-99a


    Standard Specification for Pressure Vessel Plates, Five Percent Nickel Alloy Steel, Specially Heat Treated

    • Historical Version