Fillet Knife Metal

[LexEdman]

I wanted to see anyone can tell me how to Heat Treat 01 steel for a fillet knife. I would like to be able get flex without bending. I am using 1/8 thick steel.
Thanks in advance

 

[Nathan the Machinist]

You're probably going to need it to be thinner to be a fillet knife.

The HT and the alloy do not effect the stiffness (within the elastic range of the metal) - only the thickness does. It will be 8 times more flexible if you cut the thickness in half.

As far as a HT for O1 for a fillet knife, I don't know the answer. I do know O1 is prone to tempering embrittlement that starts around 500F.

 

[DrThunder88]

I cut some steak knife blanks from 1/16" O-1, and even they were pretty rigid. They were pretty short, however.