Crucible specs it's CPM Rex M4 at 63-65 Rc.
I am not making chopping knives, but that steel is popular for high speed wood working
blades for planners, etc so..........
Once you get a blade past the mid 50's Rc, they all can chip or break when used to chop or pry. I know that 440C
at 58Rc will chip if used to chop on a rabbit leg bone.
If you are going to use a knife to chop or pry I suggest a different tool unless in an emergency
situation.
CPM steels give you a fine, uniform grain due to uniform particle size. Kinda like pancake batter --without lumps.
FWIW: I took a blade made out of M4 that is at 63.5 Rc and gave it a very strenuous work out on
seasoned hardwood and had no deformation of the edge from chopping and batoning with it.
We will see. It is not for everyone. To each his own.
PS:
And beside saw cutting well, it seems to drill and grind well also.
Tim
Last edited by michiganroadkill; 01/08/18.
