875 ‰Description
STAR305R
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 | 116 HV | 92 HV | ||
| Density | 16.63 g/cm3 | 17.29 g/cm3 | ||
| Melting Range | Solidus: 895 °C Liquidus: 918 °C |
Solidus: 920 °C Liquidus: 949 °C |
