375 ‰Description
STAR181R
Universal master alloy for the production of red 375 – 417 – 585 – 750 – 917 ‰ 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 | 119 HV | 128 HV | 154 HV | 194 HV |
| Density | 11.2 g/cm3 | 11.53 g/cm3 | 12.94 g/cm3 | 14.94 g/cm3 |
| Melting Range | Solidus: 839 °C Liquidus: 931 °C |
Solidus: 849 °C Liquidus: 928 °C |
Solidus: 861 °C Liquidus: 903 °C |
Solidus: 888 °C Liquidus: 895 °C |
