Pandora Silver Casting Tarnish Resistant Alloy for Open and Closed Systems and for Casting
with Stones in Place.
Density: 10.22 g/cm3Hardness (as cast): 60 HV
Hardness (after annealing): 65 HV
Hardness (after age hardening): 130 HV
DIRECTIONS FOR SUGGESTED USE
Melting temperature: 880 °C
Casting temperature:
100° C over its melting temperature to cast with centrifugal machines.
140° C over its melting temperature to cast in outdoor cylinders with vacuum.
120° C over its melting temperature to cast in vacuum machines with controlled atmosphere.
Cylinders temperature: from 550 °C to 650 °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: 620 °C for 20 minutes followed by a quick cooling in hot
water (40° C min.)
Age hardening: step 1: solubilization
700 °C for 30 minutes followed by quick cooling in hot
water (min. 40 °C), better if with alcohol
step 2: hardening
300 °C for 2 hours. Cooling at room temperature.
