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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
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ASTM A285 Grade C low and medium carbon steel

ASTM A285 Grade C steel covers pressure vessel plate of low and intermediate tensile strength carbon steel.
Thickness: 6MM to 300MM
Width: 1500mm to 4050mm
Length: 3000mm to 15000mm
ASTM A285 Grade C low carbon steel is intended for use in standard tanks and boilers rather than high pressurised vessels due to the steels lower yield strength. ASTM A285 Grade C is supplied throughout the oil gas and petrochemical industry.
ASTM A285 Grade C low and medium carbon steel in fire box and flange quality designed for fusion welded boilers and pressure vessels where moderate strength and good forming is required.

