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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
JIS G 3115 SPV 315 steel,JIS G 3115 SPV 315 steel Chemical Composition
JIS G 3115 SPV 315 steel is a kind of material for boiler and pressure vessel steel. JIS G 3115 SPV 315 steel is mainly used to for manufacturing boilers, pressure vessels and pipes transporting hot liquids.
There are five main elements in JIS G 3115 SPV 315 steel, carbon(C), manganese(Mn), phosphorus(P), sulfur(S) and silicon(Si).
JIS G 3115 SPV 315 steel Chemical Composition specific data is as follows:
C % 0.08-0.2
Mn % 0.90-1.50
P % 0.025
S % 0.015
Si % 0.40
In general, phosphorus is harmful element in steel, increases steel cold brittleness, leads welding performance deterioration and cold bending property deterioration, reducing plastic. Therefore usually require steel contains phosphorus less than 0.045%, high quality steel requires less.
Through the above data, JIS G 3115 SPV 315 steel contains 0.025% phosphorus, we can know that JIS G 3115 SPV 315 steel belongs to high quality steel.
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