875 ‰Description
STAR307NG
Universal master alloy for the production of yellow 875 – 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.
| 875 ‰ | 917 ‰ | |||
| Hardness as cast | 128 HV | 97 HV | ||
| Density | 16.6 g/cm3 | 17.39 g/cm3 | ||
| Melting Range | Solidus: 787 °C Liquidus: 893 °C |
Solidus: 801 °C Liquidus: 936 °C |
