Hardness (as cast): 192 HV
Hardness (after annealing): 190 HV
Hardness (after age hardening): 307 HV
DIRECTIONS FOR SUGGESTED USE
Melting temperature: 890 °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 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: 650 °C for 20 minutes followed by a quick cooling in hot
water (40 °C min.)
Age hardening: Step 1: solubilization
680 °C for 30 minutes. Cooling quickly in warm water
(about 40 °C).
Step 2: hardening
300 °C for 2 hours. Cooling at room temperature.