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Kings Edge
01-02-2011, 07:52 PM
here gose it 440c &ats fans having problems heattreating took to1975 1/2hr. draw900 2hrs twice became part non magnetic what would be my problim never had that to happon

cappaletti
01-14-2011, 07:33 AM
never heard of that before either..maybe uneven heat???:les:

Sampson knifeworks
01-15-2011, 08:32 AM
Hello, That sounds close for ATS-34, try 1950 degree's next time or double check your furnace with a separate pyrometer. I think 440c should be in the 1850f to 1900f range with a 300 to 400 degree temper. How did you quench the steel?
Sampson Knifeworks