PRIMA690L

Master alloy for the production of red 375 – 417 – 585 ‰ 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 0 – 20 % of pure silver to the master alloy.

375 ‰

417 ‰

585 ‰

Hardness as cast

120 HV

117 HV

128 HV

Density

11.18 g/cm3

11.5 g/cm3

12.95 g/cm3

Melting Range

Solidus: 894 °C
Liquidus: 959 °C

Solidus: 895 °C
Liquidus: 951 °C

Solidus: 894 °C
Liquidus: 919 °C

Description

PRIMA690L

	375 ‰	417 ‰	585 ‰
Hardness as cast	120 HV	117 HV	128 HV
Density	11.18 g/cm3	11.5 g/cm3	12.95 g/cm3
Melting Range	Solidus: 894 °C Liquidus: 959 °C	Solidus: 895 °C Liquidus: 951 °C	Solidus: 894 °C Liquidus: 919 °C