SA662 Grade A is an American Society of Mechanical Engineers (ASME) standard steel plate designed for pressure vessels intended for use in moderate and lower temperatures. It is a type of carbon-manganese-silicon steel with improved low-temperature notch toughness, primarily used for constructing welded pressure vessels for various pressure and temperature ranges.
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
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SA662 grade A Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Mn |
P |
S |
Si |
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SA662 grade A |
0.17 |
0.84-1.46 |
0.035 |
0.035 |
0.13-0.45 |
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
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Grade |
SA662 grade AMechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SA662 grade A |
mm |
Min Mpa |
Mpa |
Min % |
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200 |
275 |
400-540 |
20 |
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50 |
23 |
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Equivalent steel grade of SA662 grade A |
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Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
UK |
Japan |
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P275NL1 |
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TStE 285 |
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Benefits of SA662 Grade A:
Improved Toughness: Offers enhanced notch toughness, which is critical for applications at lower temperatures.
Versatility: Suitable for a range of welded pressure vessel applications.
Weldability: Has good welding performance, making it suitable for manufacturing welded structures.
