Specification for material selection and maximum service temperature heat treatment of heat resistant spring steel
Maximum service temperature of steel grade hot forming quenching temperature tempering temperature
50CrVA 300 880-900 850-870 oil 430-500
4Cr13 400 850-1050 980-1050 air cooling 540-560
Cold drawn 18-8 stainless steel wire 400, cold rolled, stress relieved and tempered at 400C, 15-60min
W18Cr4V 600 1000-1200 1280-1290 oil or air cooling 700
60Si2MnA 250 880-900 860-880 oil 350