1. Superior heat-check resistance

Hard to crack in comparison with the SKD61, and has a finer structure.

Has superior heat-check resistance equivalent to the KDA1 and offers a longer service life.

2. Superior machinability after hardening and annealing

30% or more higher machinability than the SKD61.

Approximately 5 times as high as the KDA1.

3. Superior tenacity

80% or more higher tenacity than the SKD61 (in the T direction).

Good tenacity equivalent to the KDA1.

4. Superior heat-softening resistance

Twice as high heat-softening resistance as the SKD61 maintains high hardness for a long time.