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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
SS400 Carbon structural steel plate steel sheet

Ss400 steel is under JIS3101 standard, due to the carbon is moderate, SS400 Carbon structural steel plate steel sheet has good comprehensive performance, strength, plasticity and welding performance is good. A large number of SS400 Carbon structural steel plate steel sheet used in construction and engineering structure. Used to make steel or building workshop room, high voltage power transmission tower, Bridges, vehicles, boilers, containers, ships, etc.
Thickness: 3-120mm
Width: 1000-3000mm
Length: 4000mm-12000mm
Chemical Composition of SS400 Carbon structural steel plate steel sheet:
|
Grade
|
Chemical Composition, % by weight |
||||
|
C. max |
Si. max |
Manganese |
P. max |
S. max |
|
|
SS400 |
- |
- |
- |
0.050 |
0.050 |
BBN Steel is one of the SS400 Carbon structural steel plate steel sheet manufacturer in China, also can supply A36, A573Gr.70, S235JR, S235J0, S235J2, S235J2G3, S235J2G4 A283, please contact us if you need.

