MECHANICAL WORKS stamping chains tube spring 14-18 Karat
Density: 14,95 g/cm³Hardness (as cast). 205 HV
Hardness (after cold work 70%): 301 HV
Hardness (after annealing): 200 HV
Hardness (after age hardening): 286 HV
Nickel release UNI EN 1811:2011: Nickel release test on finished objects is required
DIRECTIONS FOR SUGGESTED USE
Melting temperature: 930 °C
Casting temperature:
80 °C over its melting temperature for continuous casting with sinker thermocouple.
100 °C over its melting temperature to cast into ingot-mould and continuous casting
Ingot-mould temperature: 150 °C
Cooling of ingots: quick in lukewarm water (about 40 °C)
Annealing: 670 °C for 30 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.
