Hayes Metals also manufacture alloys to customer specifications including:
BS1400:1985
(maximum % unless otherwise listed)
| Cu | Remainder |
| Sn | 4.2 - 6.0 |
| Zn | 2.0 |
| Pb | 8.5 - 10.0 |
| P | 0.05 |
| Ni | 2.0 |
| Fe* | 0.15 |
| Al* | 0.01 |
| Mn* | 0.2 |
| Sb* | 0.5 |
| Si* | 0.02 |
| S* | 0.1 |
| T-I | 0.05 |
T-I Total Impurities
Elements marked with * are specified impurities
| Tensile Strength (MPa) | 160-190 |
| Elongation (% min) | 7-12 |
| 0.2% Proof Stress (MPa) | 60-100 |
| Hardness (HB) | 55-75 |