| Alloy Designation | Nominal Composition [at. %] | Hardness [kg/mm2] | ||
| Cu | Ni | Al | ||
| AB (binary alloy) | 90 | 10 | -- | 52 ± 8 |
| AT5 | 75 | 20 | 5 | 250 ± 10 |
| AT10 | 70 | 20 | 10 | 360 ± 5 |