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ASTM A537 Class 2 is a specification for pressure vessel steel plate, primarily used in the construction of welded pressure vessels where improved notch toughness is required. Here are the chemical composition and mechanical properties of ASTM A537 Class 2:
Chemical Composition of ASTM A537 Class 2
Mechanical Properties of ASTM A537 Class 2 (Minimum values unless stated otherwise) Please note that these values are minimum requirements specified by the ASTM A537 Class 2 standard, and actual values may vary depending on the specific manufacturing and testing processes employed. It is recommended to refer to the latest version of the ASTM A537 Class 2 standard or consult the manufacturer for precise and up-to-date information regarding the chemical composition and mechanical properties of the material.
C
0.24
Si
0.15/0.50
Mn
< 40mm0.70/1.35
Mn
> 40mm1.00/1.60
P
0.035
S
0.035
Cr
0.25
Mo
0.80
Ni
0.25
Cu
0.35
YIELD (MPA)
TENSILE (MPA)
ELONGATION A50MM
ELONGATION A200MM
THICKNESS
415
550/690
22%
-
< 65
380
515/655
22%
-
> 65 < 100
315
485/620
20%
-
> 100 < 150
