375 ‰Description
STAR187R
Universal master alloy for the production of red 375 – 417 – 585 – 750 ‰ gold jewellery obtained by investment casting and mechanical working. The elements contained in this product ensure a high surface quality in investment casting, while in mechanical working a high deformation capability thanks the small grain structure, making it suitable for the production of hand and machine made hollow and solid chains, deep drawn items and tube.
| 375 ‰ | 417 ‰ | 585 ‰ | 750 ‰ | |
| Hardness as cast | 101 HV | 121 HV | 136 HV | 206 HV |
| Density | 11.18 g/cm3 | 11.5 g/cm3 | 12.95 g/cm3 | 14.85 g/cm3 |
| Melting Range | Solidus: 896 °C Liquidus: 962 °C |
Solidus: 897 °C Liquidus: 945 °C |
Solidus: 895 °C Liquidus: 921 °C |
Solidus: 893 °C Liquidus: 901 °C |
