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ASTM A283 VS A36 steel steel plate

Both ASTM A283 and ASTM A36 steel are carbon steel of structural quality for general application. ASTM A283 carbon steel covers four grades: A283 Grade A, A283 Grade B, A283 Grade C and A283 Grade D. Among the four grades, A283 Grade C has very similar chemical composition and mechanical peroperties with A36 steel. Therefore, for ASTM A283 VS A36 steel, we mainly compare between A283 Grade C and A36 steel.

ASTM A283 VS A36 steel in chemical composition:

Grade  C  (t≤16mm) Si Mn P S Cu
A283 Grade C 0.24 max 0.04 max 0.09 max 0.035 max 0.04 max 0.20 min
A36 0.26 max 0.40 max - 0.04 max 0.05 max 0.20 min

ASTM A283 VS A36 steel in mechanical peroperties:

Grade Yield strength ReH/(N/mm2) Tensile strength Rm/(N/mm2) (3mm≤t≤16mm) Elongation A/%
(t≤16mm) min (3mm≤t≤40mm) min
A283 Grade C 205 380-515 25
A36 250 400-550 23

Both A283 Grade C and A36 steel has very wide application and they are used in a lot of common fields. But the tank makers would prefer A283 Grade C steel than A36 steel, as A283 Grade C steel has lower yield strength and would be easier for forming.

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