| C | Cr | Ni | Fe | Mn | Si | Mo | Co | Cu | P | S | Nb+Ta | V | W | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | . | 19 | . | 15 | . | . | 8.0 | . | . | . | . | . | . | . |
| Max | 0.015 | 21 | 50 | 20 | 1 | 1 | 10.0 | 2.5 | 0.5 | 0.04 | 0.15 | 0.50 | 0.04 | 1.0 |
| Grade | Yield Strength | Tensile Strength | Elongation(%) | |
|---|---|---|---|---|
| Min | Max | |||
| 110 | 110KSI (758Mpa) | 140KSI (965Mpa) | ≥115KSI (793Mpa) | 11 |
| 125 | 125KSI (862Mpa) | 150KSI (1034Mpa) | ≥130KSI (896Mpa) | 10 |