375 ‰Description
STAR320L
Universal master alloy for the production of yellow 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 | 122 HV | 131 HV | 147 HV | 176 HV |
| Density | 11.21 g/cm3 | 11.53 g/cm3 | 12.99 g/cm3 | 15.52 g/cm3 |
| Melting Range | Solidus: 767 °C Liquidus: 871 °C |
Solidus: 801 °C Liquidus: 877 °C |
Solidus: 839 °C Liquidus: 877 °C |
Solidus: 806 °C Liquidus: 863 °C |
