PRIMA693R

Master alloy for the production of red 375 – 417 – 585 – 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 10 – 20 % of pure silver to the master alloy.

375 ‰

417 ‰

585 ‰

750 ‰

Hardness as cast

116 HV

120 HV

135 HV

208 HV

Density

10.61 g/cm3

10.95 g/cm3

12.91 g/cm3

14.81 g/cm3

Melting Range

Solidus: 882 °C
Liquidus: 954 °C

Solidus: 880 °C
Liquidus: 940 °C

Solidus: 876 °C
Liquidus: 910 °C

Solidus: 894 °C
Liquidus: 905 °C

Description

PRIMA693R

	375 ‰	417 ‰	585 ‰	750 ‰
Hardness as cast	116 HV	120 HV	135 HV	208 HV
Density	10.61 g/cm3	10.95 g/cm3	12.91 g/cm3	14.81 g/cm3
Melting Range	Solidus: 882 °C Liquidus: 954 °C	Solidus: 880 °C Liquidus: 940 °C	Solidus: 876 °C Liquidus: 910 °C	Solidus: 894 °C Liquidus: 905 °C