How much hardness can SKD6 1 achieve after nitriding?

The brand corresponding to China (GB/T 1299-2000) is 4Cr5MoSiV 1, which is the most widely used hot working die steel and can replace SKD6 1. SKD6 1 corresponds to American standard H 13 and Korean standard STD6 1.

Heat treatment: air cooling quenching in this section, the quenching temperature is 1020~ 1050 degrees, the hardness is 56~58HRC, and the heat treatment deformation is small.

The surface can be nitrided to reach HV800.

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