ASTM A204/A204M-12
Standard Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum

Standard No.
ASTM A204/A204M-12
Release Date
2012
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM A204/A204M-17
Latest
ASTM A204/A204M-17(2022)
Scope

1.1 This specification covers molybdenum-alloy steel plates, intended particularly for welded boilers and other pressure vessels.

1.2 Plates under this specification are available in three grades having different strength levels as follows:

Grade Tensile Strength, ksi [MPa]
A 65–85 [450–585]
B 70–90 [485–620]
C 75–95 [515–655]

1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the maximum thickness of plates furnished under this specification as follows:

Grade Maximum Thickness, in. [mm]
A 6 [150]
B 6 [150]
C 4 [100]

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 this specification.

ASTM A204/A204M-12 Referenced Document

  • ASTM A20/A20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels
  • ASTM A435/A435M Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
  • ASTM A577/A577M Standard Specification for Ultrasonic Angle-Beam Examination of Steel Plates
  • ASTM A578/A578M Standard Specification for Straight-Beam Ultrasonic Examination of Plain and Clad Steel Plates for Special Applications

ASTM A204/A204M-12 history

Standard Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum


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