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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
Grade E St E 285 steel
Grade E St E 285 steel belongs to alloy structural steel. Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
Grade E St E 285 steel
Grade E St E 285 steel Chemical Composition:
C(％)≤: 0.16
Si(％): ≤0.40
Mn(％): 0.50～1.50
P(％)≤: 0.025
S(％)≤: 0.015
N(％)≤: 0.020
Als(％): 0.020
Cr(％)≤: 0.30
Cu(％)≤: 0.30
Mo(％)≤: 0.08
Ni(％)≤: 0.50
Nb(％)≤: 0.05
Ti(％)≤: 0.03
V(％): 0.05
Nb+Ti+V (％): 0.05
Cr+Cu+Mo≤0.45％
The concentration of alloy element of Grade E St E 285 steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
Alloy structural steel are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
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