| Grade | A36 |
| Standard | ASTM A36/A36M-2019 |
| Standard Specification for Carbon Structural Steel | |
| Classification | Carbon steel |
| A36 Chemical Element Content (%) | ||||||
| Constituent | C | Si | Mn | P | S | Cu |
| Min | – | 0.15 | 0.85 | – | – | – |
| Max | 0.26 | 0.4 | 1.35 | 0.04 | 0.05 | 0.2 |
| ① is the content of profile C; C≤0.25%, plate t≤40mm; C≤0.26%, plate 40<t≤65mm, bar t≤20mm; C≤0.27%, plate 65<t≤100mm, bar 20<t≤40mm; C≤0.28%, bar 40<t≤100mm; C≤0.29%, plate, bar t>100mm ②Si content, profile thickness t>75mm, plate t>40mm; Si≤0.40%, profile t≤75mm, plate t≤40mm, bar all sizes. ③Mn content, profile t>75mm; Mn is 0.80~1.20%, plate t>20mm; Mn content is 0.60~0.90%, d/t>20. |
||||||
| A36 Mechanical properties | ||||
| Condition | Heat treatment or condition | Tensile Strength | Yield stress | Elongation |
| σb | σs | δ | ||
| Mpa | Mpa | % | ||
| Plate, profile, bar | / | 400~550 | ≥250 | ≥23 |
