SA202 Grade B is a chromium-molybdenum-manganese alloy pressure vessel steel plate in the American ASTM standard (ASTM A202). It belongs to medium-high strength heat-resistant steel and is mainly used to manufacture pressure vessels under high temperature and pressure conditions (such as boiler drums, chemical reactors, preheater shells, etc.).
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SA202 Grade B Pressure Vessel Steel Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
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SA202 GrB |
0.25 |
0.54-0.90 |
0.97-1.52 |
0.035 |
0.035 |
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Grade |
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SA202GrB Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SA202 GrB |
mm |
Min Mpa |
Mpa |
Min % |
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6-50 |
325 |
587-760 |
18% |
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50-100 |
325 |
587-760 |
15% |
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Equivalent steel grade of SA202GrB |
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Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
India |
Japan |
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E St E315 |
18 MD 4.05 |
16 Mo 6 |
22.16.04 |
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450M |
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