ASTM A516 Gr 70 VS A36, ASTM A516 steel and A36 steel actually belong to different steel types. ASTM A516 steel is pressure vessel and boiler steel. ASTM A36 steel is mild steel. For the chemical content of carbon, ASTM A516 steel and A36 steel are also called carbon steel. But their properties have obvious difference.
ASTM A516 Gr 70 VS A36 carbon steel plate in chemical composition:
ASTM A36 carbon steel plate chemical composition:
| Grade | C (t≤16mm) | Si | Mn | P | S |
| A36 | 0.26 max | 0.40 max | - | 0.040 max | 0.050 max |
ASTM A516 Gr 70 carbon steel plate chemical composition:
| Chemical elements | Percentage % | Chemical elements | Percentage % |
| C | 0.10/ 0.22 | Cu | 0.30 |
| Si | 0.6 | Ni | 0.30 |
| Mn | 1/ 1.7 | Mo | 0.08 |
| P | 0.03 | Nb | 0.01 |
| S | 0.03 | Ti | 0.03 |
| Al | 0.02 | V | 0.02 |
| Cr | 0.3 | | |
ASTM A516 Gr 70 VS A36 carbon steel plate in mechanical properties:
ASTM A36 carbon steel plate mechanical properties:
| Grade | Yield strength ReH/(N/mm2) | Tensile strength Rm/(N/mm2)
(3mm≤t≤16mm) | Elongation A/% |
| (t≤16mm) min | (3mm≤t≤40mm) min |
| A36 | 250 | 400-550 | 23 |
ASTM A516 Gr 70 carbon steel plate mechanical properties:
| Grade | Tensile strength
(MPa) | Minimum yield
strength (MPa) | Minimum elongation (%) gauge length |
| 50mm | 200mm |
| A516 Gr 70 | 485 - 620 | 260 | 21 | 17 |
ASTM A516 Gr 70 VS A36 carbon steel plate in application:
ASTM A36 carbon steel plate is used in heavy machinery, industrial boilers, wagon tippers, feeders, stackers, crushers, loaders, cranes, shipping industry and supporting frames for equipment used in metallurgical and other heavy industries.
ASTM A516 Gr 70 steel plate is mainly used for pressure vessel and boiler, oil and gas as well as petrochemical industries.
