Joshhuntknives

Thanks for the help everybody!

Success! The blade was stock removal. I have a thermocouple that I run alongside the blade when heat treating… skipped the soak time and got it a little hotter… seemed to do the trick. Thermocouple might not be that accurate after all…

Could be worth snapping to check the grain structure and trying again? Hopefully wasn’t too hot! 

Thanks for your help!

5 hours ago, ThomasPowers said:

Why do I keep seeing the same post over and over?---This is not a chat room.  Folks will answer as it suits them.

Are you heating the steel to non-magnetic before quenching?

Are you getting it in the quench FAST---a second or two.

Are you sure it's O1, have you successfully hardened it before?

Apologies! Thanks for your replies. not trying to spam people. New to the forum. Realised the post was in the wrong sub-forum…

Successfully hardened a smaller off cut from the billet. Getting it in the oil within a second or so… (non magnetic) I’m pretty stuck!

Maybe O1 is still softer than a chainsaw file after quench? 

Hey all! Having troubling hardening O1.

I have a 6mm thick bushcraft blade that’s normalised and annealed… soaked it at 815 Celsius for 15 mins (in a pipe in the forge) and quenched in canola oil at 40 Celsius. But no luck! File cuts fine… I tried with a smaller piece of steel that  hardened fine. Maybe 6mm is too thick? And is not quenching/cooling fast enough? 
Thanks for your help!