MECHANICAL WORKS stamping chains (hollow) tube spring
Density: 12,95 g/cm3
Hardness (as cast): 133 HV
Hardness (after cold work 70%): 247 HV
Hardness (after annealing): 135 HV
Hardness (after age hardening): 194 HV
DIRECTIONS FOR SUGGESTED USE
Melting temperature: 870 °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: 620 °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 lukewarm water
(about 40 °C).
Step 2: hardening
300 °C for 2 hours. Cooling at room temperature.