What process do you use to harden the blade?
I made a simple forge and use lump coal for fuel. If you can get some air flow to the bottom of the fire, you'll have plenty of forge fleas in no time ! Stick the steel in the coals and heat to 1600-1700 F (non magnetic) and quench in oil. Temper in an oven or toaster for an hour @400-425F.
There is alot of knowledge out there on the net, but this is basically it. Temps given are approximate for a simple(carbon)10XX series steel. Stailess requires more heat and a longer soak. Most folks heat treat those in a ht oven, salts or send out to a commercial heat treater.
Carbon steel you can heat treat in the backyard ! !
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