Hayes Metals also manufacture alloys to customer specifications including:
BS1400:1985
(maximum % unless otherwise listed)
| Cu | Remainder |
| Sn | 0.50 |
| Zn | 1.0 |
| Pb* | 0.05 |
| P* | 0.05 |
| Ni | 1.5 - 4.5 |
| Fe | 2.0 - 4.0 |
| Al | 7.0 - 8.5 |
| Mn | 11.0 - 15.0 |
| Si* | 0.15 |
| T-I | 0.30 |
T-I Total Impurities
Elements marked with * are specified impurities
| Tensile Strength (MPa) | 650-730 |
| Elongation (% min) | 18-35 |
| 0.2% Proof Stress (MPa) | 280-340 |
| Hardness (HB) | 160-210 |