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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
Advantages and Characteristics of G3115 SPV36 Steel Plate
High Strength and Excellent Toughness
The SPV36 steel plate boasts a yield strength of ≥355MPa and a tensile strength ranging from 490-630MPa, enabling it to withstand high loads in high-pressure equipment. Its outstanding low-temperature toughness ensures an impact energy of ≥27J at -40°C, guaranteeing stable performance in cold regions or low-temperature operating conditions. This balance of strength and toughness makes it suitable for applications requiring simultaneous resistance to pressure and temperature fluctuations.
Superior Weldability and Machinability
With a carbon content controlled at ≤0.22% and a well-optimized combination of manganese (Mn), silicon (Si), and other elements, the steel plate significantly reduces the risk of welding cracks. It supports various welding methods, including Shielded Metal Arc Welding (SMAW) and Gas Metal Arc Welding (MIG/MAG), ensuring stable weld quality. Additionally, it can be processed into complex shapes through rolling, stamping, cutting, and other techniques, meeting customized requirements for pressure vessels, pipelines, and other equipment.
Corrosion Resistance and Environmental Adaptability
The addition of alloy elements such as copper (Cu), nickel (Ni), and chromium (Cr) forms a dense oxide film, effectively resisting erosion from atmospheric conditions, water vapor, and mildly corrosive media. In humid or industrial atmospheric environments, its corrosion resistance is 2-5 times that of ordinary carbon steel, extending equipment service life and reducing maintenance costs.