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ASTM A516 GR 70 chemical composition steel plate

ASTM A516 GR 70 steel is one of the most popular steels for pressure vessels, boilers and heat exchangers. ASTM A516 GR 70 steel performs especially excellent at low temperature and have good results on standard Charpy V Notch toughness tests.

ASTM A516 GR 70 chemical composition:

Grade The Element Max (%)
ASTM A516 GR 70 C Si Mn P S
<12.5mm 0.27 0.13-0.45 0.79-1.30 0.035 0.035
12.5-50mm 0.28 0.13-0.45 0.79-1.30 0.035 0.035
50-100mm 0.30 0.13-0.45 0.79-1.30 0.035 0.035
100-200mm 0.31 0.13-0.45 0.79-1.30 0.035 0.035
>200mm 0.31 0.13-0.45 0.79-1.30 0.035 0.035

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

According to technical standard ASTM A516/A516M, the carbon content requirement for ASTM A516 GR 70 steel varies with the thickness.

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