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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
HII steel, HII steel Chemical Composition, HII steel Mechanical Properties
HII steel Chemical Composition: Carbon max 0.20 , Manganese from 0.80 to 1.40, Sulphur max 0.015, Phosphorus max 0.025, Silicon max 0.40, More detailed information. HI tensile strength is from 360 MPa to 450 MPa. (different min strength point at the different thickness.)
HII steel
HII steel Mechanical Properties: HII steel is mainly used to fabricate boiler and pressure vessel. So, same the other boiler and pressure vessel using steel plate, HII steel has the good grain and mechanical properties. HII steel's yield strength is between 185 to 265 MPa. HII steel tensile strength is from 90 MPa to 530 MPa. (different min strength point at the different thickness.)
BEBON service is the "one-stop" work style. We have our own processing factory, can offer client the service like wire drawing, Grinding mirror,cutting, knurling….
If you have any need HII steel, please contact us.