SPARK681L

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

102 HV

103 HV

118 HV

Density

10.94 g/cm3

11.32 g/cm3

12.78 g/cm3

Melting Range

Solidus: 838 °C
Liquidus: 909 °C

Solidus: 825 °C
Liquidus: 910 °C

Solidus: 823 °C
Liquidus: 874 °C

Description

SPARK681L

	375 ‰	417 ‰	585 ‰
Hardness as cast	102 HV	103 HV	118 HV
Density	10.94 g/cm3	11.32 g/cm3	12.78 g/cm3
Melting Range	Solidus: 838 °C Liquidus: 909 °C	Solidus: 825 °C Liquidus: 910 °C	Solidus: 823 °C Liquidus: 874 °C