ASTM-A204 › Historical Revision Information
Standard Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum
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This specification covers molybdenum alloy steel plates, intended particularly for welded boilers and other pressure vessels. Plates under this specification are available in three grades having different strength levels: Grade A; Grade B; and Grade C. The steel shall be killed. The steel shall conform to the chemical requirements specified. Tension tests on plates shall conform to the requirements specified.
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.
Keywords
alloy steel plate; molybdenum-alloy; pressure containing parts; pressure vessel steel plate; ICS Number Code 77.140.30 (Steels for pressure purposes)
To find similar documents by ASTM Volume:
01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)
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Document Number
ASTM-A204/A204M-12
Revision Level
2012 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
July 1, 2012
Document Type
Specification
Page Count
3 pages
Committee Number
A01.11