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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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A203 Grade A steel plate,A203 Grade A mechanical property

A203 Grade A steel plate under ASTM standard, it is a kind of nickel alloy steel which is widely used in welded pressure vessels.
A203 Grade A steel plate specification:
Standard: ASTM Grade: A203 Grade A
Thickness 8mm-150mm, Width: 1500-4020mm, Length: 3000-27000mm
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A203 Grade A steel chemical composition |
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Grade |
The Element Max (%) |
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A203 Grade A |
C |
Si |
Mn |
P |
S |
Ni |
|
0.21 |
0.13-0.45 |
0.78-0.88 |
0.035 |
0.035 |
2.03-2.57 |
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Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Grade |
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A203 Grade A |
Thickness |
Yield |
Tensile |
Elongation |
|
mm |
Min Mpa |
Mpa |
Min % |
|
|
6-50 |
255 |
450-585 |
19 |
|
|
50-150 |
255 |
450-585 |
19 |
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A203 Grade A steel plate application:
A203 Grade A steel plate is widely used in pressure vessel, boiler, storage tanks and heat exchanger in oil, gas project.
Our A203 Grade A steel advantage:
1. Best Quality-Our steel from China First-Class mill with Die stamp include heat number and batch number,It can be tracked.
2. Fast Delivery-Good relationship with Mill and Forwarder Shipping Agent for producing and shipping.
3. Professional Team-Work steel business more than six years for export steel plate.
4. Reasonable Price-Cooperate with 15 mills, satisfy with different request for the price and quality.
5. Kinds of Payment-T/T, L/C at sight, Usance Letter of Credit.
If you want to know more information about A203 Grade A steel plate, please contact us and let us know your required specification, the best A203 Grade A steel plate price will be quoted in shortest time.

