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How To Heat Treat Simple Carbon Steels:The short version:Heat the steel to non-magnetic any way you can (815 C / 1500 F)No hold time required, just get the entire blade to this temperatureQUICKLY quench in luke warm Canola oil (oil is 30-50 C / 86 F-122F)Sand the flats with some sand paper (just enough to get a few shiny sections)Temper the blade in the stove for 2 hours x 2 at 200 C (390 F)The long version: (more detailed info on heat treatment and why you should do it this way)Simple carbon st …