375 ‰Description
SPARK680L
Master alloy for the production of yellow 375 – 417 – 585 ‰ gold jewellery obtained by investment casting. The elements contained in this product ensure a high deoxidation in casting and a high surface quality, making it suitable for castings with and without stones in place. The use is suggested with the addition of 10 – 30 % of pure silver to the master alloy.
| 375 ‰ | 417 ‰ | 585 ‰ | ||
| Hardness as cast | 121 HV | 118 HV | 141 HV | |
| Density | 11.08 g/cm3 | 11.42 g/cm3 | 12.92 g/cm3 | |
| Melting Range | Solidus: 777 °C Liquidus: 869 °C |
Solidus: 778 °C Liquidus: 863 °C |
Solidus: 816 °C Liquidus: 865 °C |
