| Elements | Content (%) |
| Iron, Fe | 42 |
| Nickel, Ni | 38 |
| Cobalt, Co | 13 |
| Niobium, Nb | 4.7 |
| Titanium, Ti | 1.5 |
| Silicon, Si | 0.15 |
| Aluminum, Al | 0.03 |
| Properties | Metric | Imperial |
| Tensile strength (precipitation hardened, value at room temperature) | 1350 MPa | 196000 psi |
| Yield strength (@ strain 0.200%, precipitation hardened, value at room temperature) | 1100 MPa | 160000 psi |
| Poisson’s ratio | 0.36 | 0.36 |
| Elongation at break (precipitation hardened) | 10% | 10% |
| Reduction of area | 36 | 36 |