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ASME SA-542/SA-542M-2023
Pressure Vessel Plates, Alloy Steel, Quenched-and- Tempered, Chromium-Molybdenum, and Chromium- Molybdenum-Vanadium
Material Designation Chemical Composition (%)
SA542 Type A Class 1
Min
Max
SA542 Type B Class 1
Min
Max
SA542 Type A Class 2
Min
Max
SA542 Type A Class 3
Min
Max
SA542 Type A Class 4
Min
Max
SA542 Type A Class 4a
Min
Max
SA542 Type B Class 2
Min
Max
SA542 Type B Class 3
Min
Max
SA542 Type B Class 4
Min
Max
SA542 Type B Class 4a
Min
Max
SA542 Type C Class 1
Min
Max
SA542 Type C Class 2
Min
Max
SA542 Type C Class 3
Min
Max
SA542 Type C Class 4
Min
Max
SA542 Type C Class 4a
Min
Max
SA542 Type D Class 1
Min
Max
SA542 Type D Class 2
Min
Max
SA542 Type D Class 3
Min
Max
SA542 Type D Class 4
Min
Max
SA542 Type D Class 4a
Min
Max
SA542 Type E Class 4
Min
Max
SA542 Type E Class 4a
Min
Max
For Reference Only