585 ‰Description
STAR331R
Universal master alloy for the production of yellow 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.
| 585 ‰ | 750 ‰ | |||
| Hardness as cast | 165 HV | 157 HV | ||
| Density | 14.31 g/cm3 | 16.79 g/cm3 | ||
| Melting Range | Solidus: 787 °C Liquidus: 833 °C |
Solidus: 855 °C Liquidus: 864 °C |
