Plastic Mold Steels
S-Star
Heat Treatment:
Hardened-Tempered Hardness
Maximum hardness of 53HRC is obtained.
Quenching
Tempering
Double tempering is recommended for both low and high temperature tempering.
Notes:
- For hyigher corrosion resistance, tempering should be carried out at temperatures of 400°C or lower.
- To prevent cracking in EDM, tempering is recommended at 490 to 510°C
- When aging dimensional stability is deemed important, carry out low temperature tempering at 200 to 400°C or sub-zero processing.
Dimensional Change
Dimensional change is the smallest by tempering about 300°C
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