Test blate 0.098″ thick, 7″ edge 11.75″ OAL
Previous ht aust at 2025F – edge was too brittle at 63rc. This blade is being weave with aust 1920F. 0.11% Nitrogen could amplified driving force from Aust to Mart phase conversion.
Aust 1920F yielded 64rc. Edge stability is good. Test edge geometry 0.013″ BET/ 14dps – passed common whittle material but bone. Chopped 2×4 & oak board fine.