Hi All,
what do you experiences, what is the ideal quenching temperature for K720 or O2 steel to make razor? I have tried from 790 C (tempering 2x180 C). Not bad but a little bit soft and the edge is sensitive. Shaving well but maybe there is a better solution.
I made braking tests and saw this steel has bigger grain sizes than O1. This is the reason why I choosed the lowest temperature.
Thanks in advance for your help!