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ASTM A202 Grade B is a chromium-manganese-silicon low-alloy steel tailored for high-pressure, medium-temperature pressure vessel applications.2026-04-30
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ASTM A202 Grade A is a critical chromium-manganese-silicon low-alloy steel plate specifically designed for welded pressure vessels and boilers operating at medium temperatures.2026-04-30
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ASTM A202 Pressure Vessel Steel Material and Grades:
Alloy System: **Chromium-Manganese-Silicon (Cr-Mn-Si)** Low-Alloy Heat-Resistant Steel2026-04-17 -
ASTM A204/A204M Grade B molybdenum alloy steel plates for pressure vessels feature superior chemical composition and mechanical properties compared to Grade A2026-04-10
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As a molybdenum-alloy steel plate for pressure vessels under the ASTM A204/A204M standard, A204 Gr.A is a low-alloy, high-strength material specifically designed for service conditions involving moderate temperatures (≤400°C) and moderate-to-high pressure2026-03-31
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A302 Grade B boiler steel plate
Steel Name: A302 Grade B boiler steel plate, A302 Grade B boiler steel sheet, A302 Grade B steel plate, A302 Grade B steel sheet, A302 Grade B pressure vessel steel plate
A302 Grade B boiler steel plate specification:
Steel Grade: A302 Grade B Steel Standard: ASTM A302/A302M
Thickness:6mm-450mm, Width:1200mm-4200mm, Length:3000mm-18000mm
A302 Grade B chemical composition (% ):
|
Composition |
Type |
Thickness (mm) |
B |
|
C ≤ |
Heat analyse |
≤25 |
0.20 |
|
|
Product analyse |
50~100 |
0.23 |
|
|
|
＞100 |
0.25 |
|
Mn ≤ |
Heat analyse |
- |
1.15~1.50 |
|
|
Product analyse |
- |
1.07~1.62 |
|
P ≤ |
Heat analyse |
- |
0.035 |
|
S ≤ |
Product analyse |
- |
0.035 |
|
Si |
Heat analyse |
- |
0.15~0.40 |
|
|
Product analyse |
- |
0.13~0.45 |
|
Mo |
Heat analyse |
- |
0.45~0.60 |
|
|
Product analyse |
- |
0.41~0.64 |
|
Ni |
Heat analyse |
- |
- |
|
|
Product analyse |
- |
- |
|
Grade |
Tensile strength kis [MPa] |
Yield strength min, kis [MPa] |
Elongation in 8 in. [200 mm], min, % |
Elongation in 2 in. [50 mm], min, % |
|
A302 Grade B |
80-100 [550-690] |
50 [345] |
15 |
18 |
A302 Grade B boiler steel surface treatment: Shot blasting and painting or coated.
A302 Grade B boiler steel application:
ASTM A302 Grade B steel plates are widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied petroleum, hydropower station, high pressure pipe.
A302 Grade B boiler steel test: Ultrasonic examination,Normalized,Quenched and Te CC and Third party inspections by end user.
As a A302 Grade B boiler steel plate supplier in China, we keep many tons A302 Grade B boiler steel plate in stock every month , any need in A302 Grade B boiler steel plate, please feel free to contact us!