ASTM A841 specification covers three grades, Grades A, B, C, D, E, and F, ASTM A841 is a kind steel plates used to fabric multilayer pressure vessels.
ASTM A841 steel plate is produced by TMCP process. The ASTM A841 Grade A plates are intended primarily for use in welded pressure vessels.
ASTM A841 Grade A chemical composition:
|
Grade |
C |
Si |
Mn |
P |
S |
Cu |
|
0.2 |
0.15-0.50 |
0.70-1.60 |
0.03 |
0.03 |
≤0.35 |
|
A841 Grade A |
Ni |
Cr |
Mo |
V |
Co |
|
|
≤0.25 |
≤0.25 |
≤0.08 |
≤0.06 |
≤0.03 |
|
ASTM A841 Grade A mechanical properties:
|
Grade |
Thickness mm |
Yield min (Mpa) |
Tensile Mpa |
Elongation Min % |
|
5-40 |
345 |
480-620 |
22% |
|
A841 Grade A |
40-65 |
345 |
480-620 |
22% |
|
65 |
310 |
450-585 |
22% |
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