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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
AISI 4140 Low-Alloy High-Tensile Steel Plate

AISI 4140 Low-Alloy High-Tensile Steel Plate is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel plate- generally supplied hardened and tempered in the tensile range of 850 - 1000 MPA (condition T).
Pre hardened and tempered AISI 4140 Low-Alloy High-Tensile Steel Plate can be further surface hardened by flame or induction hardening and by nitride.
Chemical Composition of the AISI 4140 Low-Alloy High-Tensile Steel Plate:
Min. % Max %
Carbon 0.36 0.44
Silicon 0.10 0.40
Manganese 0.65 1.10
Chromium 0.75 1.20
Molybdenum 0.15 0.35
Phosphorous 0 0.04
Sulphur 0 0.04
If you are interested in AISI 4140 Low-Alloy High-Tensile Steel Plate, please contact us at any times, we will provide you with the best service and the right price.

