A302 Gr.B material under steel standard ASTM A302 is a manganese-molybdenum
Alloy steel plate intended particularly for welded boilers and other pressure vessels. According to their strength levels,there are different grades A302 Grade A,A302 Grade B,A302 Grade C and A302 Grade D.P ressure vessel plate
A302 Gr.B steel owns tensile strength within 550-690Mpa,minimum yield strength is 345 Mpa, and pressure vessel steel plate A302 Gr.A owned tensile strength at 515-655 Mpa.
ASTM A302 steel is a kind of low alloy steel specification covers 4 different grades(A, B, C, D), Grade C and D contains chemical composition Ni, with the same thickness, yield and tensile strength of Grade C is the same of Grade B, while elongation rate of grade C is higher. A302 Gr.B material is manufactured for Pressure Vessel, Boiler, Storage Tanks and Heat Exchanger in Oil, Gas Project.
A302 Gr.B material chemical composition(%)
| Material |
C |
Si |
Mn |
P |
S |
Mo |
| A302 Grade B |
0.20-0.25 |
0.13-0.45 |
1.07-1.62 |
0.035 |
0.035 |
0.41-0.64 |
A302 Gr.B material mechanical properties
| Thickness (mm) |
Yield strength min. |
Tensile strength |
Elongation |
| 6-50 |
345 Mpa |
550-690 Mpa |
18% |
| 50-200 |
345 Mpa |
550-690 Mpa |
15% |
If you are interested in buying A302 Gr.B steel plate products, contact us now for the latest price or A302 Gr.B equivalent steel.
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