Thread: Introduction and Forging a Razor from a File

Two tempering cycles sounds good. I would not do any differential heat treating on the razor, unless you are wanting a temper line. I would try 400 and see how it acts on the hones and how the edge acts when shaving. If the edge is chippy are really hard hone I would up the temper temp by 25 degrees and so on. It takes a little bit of experimenting to get the process optimized for your tools in your shop.

Charlie