ASTM A204grA/B/C steel plate/sheet,ASTM A204grA/B/C steel plate/sheet, under ASTM standard, we can regard A204grA/B/C steel plate/sheet for steel with Cr., Mo.,Cr-Mo steels which is used for pressure vessels.
ASTM A204grA/B/C steel grade is a kind of steel which with Cr., Mo.,Cr-Mo and mainly used for pressure vessels.The steel grade A204grA/B/C is according to ASTM standard which with the yield strength of 242MPa.The followings are the chemical composition and mechanical properties of ASTM A204grA/B/C steel plate.
The chemical composition of steel ASTM A204grA/B/C steel by [%]
Grades | C max |
Mn max |
S max |
P max |
Si | Cr | Ni | Cu | Mo | Nb+V+Ti |
A204 grA |
0.18 | 0.90 | 0.035 | 0.035 | 0.15-0.40 | - | - | - | - | - |
A204 grB |
0.20 | 0.90 | 0.035 | 0.035 | 0.15-0.40 | - | - | - | - | - |
A204 grC |
0.23 | 0.90 | 0.035 | 0.035 | 0.15-0.40 | - | - | - | - | - |
Mechanical properties of ASTM A204grA/B/C steel
Grade |
Permissible yield point ratio |
Yield Strength MPa(min) |
Tensile Strength MPa |
Elongation % (min) |
A204grA | - | 255 | 450-585 |
23 |
A204grB | - | 275 | 485-620 | 21 |
A204grC | - | 295 | 515-655 | 20 |
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