Crucible rates it for 63-65 Rc.
The furnace a Bos HT (according to Paul) max temp will come a few degrees short of able to hit more than 63.5 (possibly 64).
I shaped and ground two blade blanks that were 63.5 when I rockwelled them and that seemed just fine. They ,led me to this project.
If I end up feeling that I need another 1 to 1.5 points when these are done, I will look to go higher but doubt I will need it.
We will see.
Tim


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".