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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