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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
The P355N steel plate is a weldable fine-grain steel plate designed for pressure vessels in accordance with European standards. It exhibits high strength, excellent toughness, superior corrosion resistance, and good machinability, making it widely applied in fields such as petroleum, chemicals, power stations, and boilers.
Adhering to the EN 10028-3 standard, the P355N steel plate achieves a balance between strength and toughness through the synergistic effect of low carbon content and multiple alloying elements.
High Strength: The yield strength reaches 355 MPa, with a tensile strength ranging from 490 to 630 MPa (for thicknesses ≤16mm). As the thickness of the steel plate increases, the yield strength and tensile strength are adjusted accordingly, but they consistently remain at a high level.
Excellent Toughness: In low-temperature environments, the P355N steel plate maintains good toughness and is less prone to brittle fracture. Its impact energy reaches 40J, 47J, and 55J at -20℃, 0℃, and +20℃, respectively (for thicknesses ≤16mm), making it suitable for various low-temperature working conditions.
Corrosion Resistance: After special treatment, the P355N steel plate demonstrates good corrosion resistance, enabling it to adapt to various complex environments and extend the service life of equipment.
Weldability: The P355N steel plate exhibits good weldability, facilitating various welding operations and meeting the manufacturing requirements for pressure vessels and other equipment.