CASTING closed systems open systems pre-set stones
Density: 14,62 g/cm3
Hardness (as cast): 209 HV
Hardness (after silver addition): 190 HV
Hardness (after annealing): 200 HV
Not age-hardenable
Nickel release UNI EN 1811:2011: Nickel release test on finished objects is required
DIRECTIONS FOR SUGGESTED USE
Melting temperature: 950 °C
Melting temperature (after silver addition): 920 °C
Casting temperature:
100 °C over its melting temperature to cast with centrifugal machines.
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.
Cylinders temperature: from 600 °C to 700 °C depending on the machine and
objects dimensions
Cooling casted objects: in water after 10 minutes
Cooling casted objects (with stones): in water after 30/40 minutes
Annealing: 680 °C for 20 minutes followed by a quick cooling in hot
water (40 °C min.), better if with alcohol.