Die Cast & Forging Steels
DH31-EX
High toughness is obtained even in large size dies due to high hardenability.
- Continuous cooling transformation curve
- Bainite hardenability
As Bainite transformation starting time is twice as that of SKD61, 130min.,
quenching operations is easily and safely carried out without troubling such
as toughness deterioration in large size dies.
- Quenching cooling time vs. toughness
Cooling time of mid portion from 1030°C to 300°C (min)
- TP size: Ø440
- Quenching temp: 1030°C
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