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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
Applications of G4109 SCMV2 Steel Plate
The G4109 SCMV2 steel plate is a medium-temperature hydrogen-resistant steel for boiler and pressure vessel applications, as specified under the Japanese standard (JIS G4109). Its application scenarios are closely tied to its performance characteristics.
1. Hydrogenation Reactors in the Petrochemical Industry
Used as material for reactor liners or shells, it resists high-temperature hydrogen corrosion, ensuring long-term safe operation of equipment.
2. Pressure Vessels in Nuclear Power Equipment
Leveraging its high purity and radiation resistance, it is employed in critical components such as the primary circuit pressure boundary in nuclear power plants.
3. Liquefied Gas Transport Semi-Trailers
Serving as a replacement for traditional Q345R material, it reduces tank wall thickness (e.g., in the manufacture of 61.9 m³ liquefied gas transport trailers), lowering self-weight and improving payload efficiency.