750 ‰Description
PRIMA679HG
Master alloy for the production of yellow 750 ‰ gold jewellery obtained by investment casting. This product, thanks to its complex composition made of numerous different special elements, ensures an extreme level of deoxidation, an extreme surface quality, an enhanced fluidity and a long lasting of this features also after many reuses of casting scraps, making it the most advanced solution for castings with and without stones in place. The use is suggested with the addition of 30 – 50 % of pure silver to the master alloy.
| 750 ‰ | ||||
| Hardness as cast | 159 HV | |||
| Density | 15.12 g/cm3 | |||
| Melting Range | Solidus: 849 °C Liquidus: 868 °C |
