Hayes Metals also manufacture alloys to customer specifications including:
BS1400:1985
(maximum % unless otherwise listed)
| Cu | 57.0 min. |
| Sn | 1.0 |
| Zn | Remainder |
| Pb | 0.50 |
| Ni | 1.0 |
| Fe | 0.7 - 2.0 |
| Al | 0.5 - 2.5 |
| Mn | 0.1 - 3.0 |
| Si* | 0.10 |
| T-I | 0.20 |
T-I Total Impurities
Elements marked with * are specified impurities
| Tensile Strength (MPa) | 470-570 |
| Elongation (% min) | 18-35 |
| 0.2% Proof Stress (MPa) | 170-280 |
| Hardness (HB) | 100-150 |