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.
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FAQ
Q: What is the difference between A36 and A516 steel?
A: It is known for its excellent notch toughness and resistance to brittle fracture. A36 is a general-purpose carbon steel grade suitable for structural applications, while A516 is specifically designed for pressure vessel applications and offers superior notch toughness.
Q: What is ASTM A516 grade 70 equivalent to?
A: P355GH
ASTM A516 GD 70 - Pressure Vessel Steel
A516 GD70 steel plate is equivalent to the P355GH and 490B grades.
Q: What is ASTM A36 steel equivalent to?
A: The ASTM A36 plate is equivalent to grades like ASTM A283C, JIS G3101 SS400, JIS G3106 SM400A, EN10025-2 S235JR, DIN17100 ST37-2, and FE360B.
Q: What is ASTM A36 steel used for?
A: ASTM A36 is used in bolted, riveted, or welded construction projects such as bridges and buildings, it is also used in forming tanks & bins and machined parts like bearing plates, fixtures, rings, and parts for agricultural equipment.
| Other steel plate | ||||
| Name | Material | Specification (mm) | Tons | Remark |
| Low Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SA285, SA387Gr11, SA387Gr12, SA387Gr22, P265,P295,P355GH,Q245R(R-HIC),Q345R(R-HIC) | 3 - 300 | 8650 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| High-Strength Plate | WH785D/E,Q960D/E, Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched and tempered |
| Wear-Resistant Plate | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched and tempered |
| Bridge Plate | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Hot rolling, normalized ,hot rolling controlled rolling, quenched and tempered + toughness and brittleness |





