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Executive Standard: SA299 Gr. B steel plates comply with the ASME standard, specifically ASTM A299/A299M.2026-08-26
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SA299 is a carbon-manganese-silicon steel plate designed for pressure vessels—often referred to as "gas drum steel" under US standards.2026-08-19
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ntroduction to SA299 Gr.A Steel Plate:
SA299 Gr.A is a steel plate grade designated for boilers and pressure vessels under American standards.2026-08-11 -
A285 Gr.C and SA285 Gr.C steel plates represent the same grade, though they are governed by different standards.2026-08-04
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SA283 Gr.B is a low-to-medium strength carbon structural steel plate conforming to the American Society of Mechanical Engineers (ASME) standard.2026-07-31
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.