Hi Stu,
Good to meet you on this forum :biggrin: - only "moved"here a few days ago after the closing down of SA Blade forum...
You know, I suspect it also has something to do with how the steel is treated - most "the knife will crack if not tempered immediately after quenching" advice is given by people who forge, and/or do their heat treatment in a forge or with a flame. I have hardened quite a number of knives made with O1, D2, 5160, 52100 and 1095 (old Nicholson files...), as well as many stainless steels, by "proper" controlled heating in an electric kiln, and as stated previously have only ever had one knife crack due to too rapid heating after cryo. I wonder if uneven heating, or perhaps not soaking for the correct time could have something to do with the problem of cracking knives?
Any thoughts on this?
Good to meet you on this forum :biggrin: - only "moved"here a few days ago after the closing down of SA Blade forum...
predicting it is an effort in futility
You know, I suspect it also has something to do with how the steel is treated - most "the knife will crack if not tempered immediately after quenching" advice is given by people who forge, and/or do their heat treatment in a forge or with a flame. I have hardened quite a number of knives made with O1, D2, 5160, 52100 and 1095 (old Nicholson files...), as well as many stainless steels, by "proper" controlled heating in an electric kiln, and as stated previously have only ever had one knife crack due to too rapid heating after cryo. I wonder if uneven heating, or perhaps not soaking for the correct time could have something to do with the problem of cracking knives?
Any thoughts on this?