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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
JIS G3103 SB480 steel plate
JIS G3103 SB480 steel plate is used for boilers and pressure vessels, excepting those to be used at room and cold temperatures. These standard covers steel SB410, SB450, SB480, SB450M and SB480M.These plates are widely used in the fabrication of boilers and pressure vessels in industries such as petrochemical and manufacturing.
SB480 steel plate specification:
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
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SB480Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
Mo |
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SB480 |
0.31-0.33 |
0.15 -0.40 |
1.20 |
0.030 |
0.030 |
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Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Grade |
SB480Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SB480 |
mm |
Min Mpa |
Mpa |
Min % |
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t≦25 |
265 |
480-620 |
17 |
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25<t≦50 |
265 |
480-620 |
21 |
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SB480 Equivalent steel |
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Europe |
Germany |
Japan |
USA |
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P355 GH |
A St52 19 Mn8 St E355 |
SPV 355 |
A 537 CL.1 |
As a SB480 steel plate supplier in China, we keep more than 10000 tons SB480 steel plate in stock every month, any need in SB480 steel plate, please feel free to contact us!