White Alloy suitable for 14-18 Karat. Good for casting in open or closed systems, good for casing with Stones in Place.
Good for Mechanical Works, stamping, chains, tube or spring.
Density: 14,8 g/cm³Hardness (as cast): 180 HV
Hardness (after cold work 70%): 275 HV
DIRECTIONS FOR SUGGESTED USE
Melting temperature: 920 °C
Casting temperature:
100 °C over its melting temperature to cast into ingot-mould and continuous casting
100 °C over its melting temperature to cast with centrifugal machine
120 °C over its melting temperature to cast in vacuum machines with controlled atmosphere
140 °C over its melting temperature to cast in outdoor cylinders with vacuum
Ingot-mould temperature: 150 °C
Cylinders temperature: from 550 °C to 650 °C depending on the machine and objects
dimensions
Cooling of ingots: quick in lukewarm water (about 40°C)
Cooling casted objects: in water after 10 minutes
Annealing: 650 °C for 20 minutes followed by a quick cooling in hot water
(40 °C min.), better if with alcohol
Age hardening: Step 1: solubilization
720 °C for 30 minutes. Cooling quickly in lukewarm water
(about 40 °C), better if with alcohol.
Step 2: hardening
300 °C for 2 hours. Cooling at room temperature.
