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The demand for reliable materials in cryogenic service applications has increased significantly with the rapid growth of LNG terminals, industrial gas storage facilities, and low-temperature pressure vessels.2026-06-24
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For engineers specifying materials for cryogenic pressure vessels, finding the balance between strength and ductility at sub-zero temperatures is challenging.2026-06-12
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In industries where equipment must operate reliably under freezing or cryogenic conditions, material selection becomes a matter of safety and structural integrity.2026-06-01
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While both ASTM A203 Grade B and ASTM A106 Grade B serve critical roles in industrial applications, they are fundamentally different in composition, purpose, and performance.2026-06-01
Grade HI steel, Grade HI steel Chemical Composition
Grade HI steel is one mainly of steel for gas cylinders and gas vessels.
Grade HI steel
Grade HI steel is in DIN 17155 standard. Grade HI steel' s grade Number is 1.0111. The equal material of Grade HI steel is: NFA 36-211 BS1, UNE 36129 AE 235 KR, BS 5045 Type A, UNI 7355 FeE24KR, JIS G3116 SG255.
Grade HI steel Chemical Composition(%):
Mn:≤ 0.3 C: ≤ 0.16 S: ≤ 0.015 P: ≤ 0.025 Si: ≤ 0.25 Al:≤0.02 Nb:≤ 0.05 Ti:≤ 0.03
Grade HI steel Mechanical Properties:
Tensile Strength(Ksi):360-450
Yield Strength(Ksi): ≥ 245
Elongation(%): ≥ 26 (thickness under 3mm); ≥ 34 (thickness above 3mm)
As a professional steel supplier, BEBON STEEL registers hundreds of thousands of tons of Grade HI steel ex-stock source on our spot trade platform. If you are interested in Grade HI steel, welcome to contact us, look forward to cooperate with you.