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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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A299 Grade B Boiler steel plate, A299 Grade B boiler steel equivalent material
A299 Grade B Boiler steel plate under ASTM standard. As a professional A299 Grade B boiler steel supplier, we promise we can offer you the qualified A299 Grade B Boiler steel plate. More information about A299 Grade B Boiler steel plate, please see the following:
A299 Grade B boiler steel plate specification:
Steel Grade: A299 Grade B Steel Standard: ASTM A299/A299M
Thickness:6mm-450mm, Width:1200mm-4200mm, Length:3000mm-18000mm
A299 Grade B boiler steel Equivalent material: Germany T St E255, Italy Fe 360 2 KG.
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A299 Grade B Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
Mo |
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A299 GR.B |
0.28-0.30 |
0.13-0.45 |
0.84 -1.62 |
0.035 |
0.035 |
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Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Grade |
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Thickness |
Yield |
Tensile |
Elongation |
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A299 GR.B |
mm |
Min Mpa |
Mpa |
Min % |
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t≦50 |
310-325 |
550-690 |
19 |
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50<t≦200 |
310-325 |
550-690 |
19 |
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A299 Grade B boiler steel plate application:
A299 Grade B boiler steel plates are widely used to build boilers and pressure vessels such as petroleum, chemical industry, power plants.
A299 Grade B steel surface treatment: Shot blasting and painting or coated.
A299 Grade B boiler steel test: Ultrasonic examination,Normalized,Quenched and Te CC and Third party inspections by end user.
We supply good quality A299 Grade B boiler steel, A299 Grade B boiler steel plate, A299 Grade B boiler steel sheet. Check more detail information about A299 Grade B boiler steel, please feel free to contact us!