| ASTM A 106 Chemcial Composition | |||||||||||
| Stee grade | Delivery condition | C max | Si max | Mn max | P max | S max | Ni max | Cr max | Cu max | Mo max | V max |
| A | Hot-finished | 0.25 | 0.10 | 0.27-0.93 | 0.035 | 0.035 | 0.400 | 0.400 | 0.400 | 0.150 | 0.080 |
| B | Hot-finished | 0.30 | 0.10 | 0.29-1.06 | 0.035 | 0.035 | 0.400 | 0.400 | 0.400 | 0.150 | 0.080 |
| C | Hot-finished | 0.30 | 0.10 | 0.29-1.06 | 0.035 | 0.035 | 0.400 | 0.400 | 0.400 | 0.150 | 0.080 |