3-4 X edge holding vs D2 ??

[grouse hunter]

Having placed an order with Doug Mondt for a custom cpm-10v hunting knife (after much thought on type of steel) I am still doing on line research of this steel....I ran across this site www.cruciblecompaction.com/docs/cpm.pdf. Can I correctly assume cpm-10v has 3-4Xs the edge holding ability as D2 both @ rc60-61...it looks TOO good to be true!!

The more I read about cpm-10v the more I'm impressed.

Anyone out there with (real world field) first hand experience with this steel?

grouse hunter

 

[Cliff Stamp]

grouse hunter :

Can I correctly assume cpm-10v has 3-4Xs the edge holding ability as D2 both @ rc60-61

The short answer is no, the long answer is that edge retention isn't a trival subject and a blades ability in this regard is very dependent on what you are cutting.

Most materials being cut can't actually wear into a knife edge, and the edge tends to dull by deforming. Even 1095 can show outstanding edge retention on many materials when the hardness is very high, 64+ RC, and at such a hardness would outcut 10V at ~60 RC for a long time on many materials.

Wear resistance comes into play when you are cutting very abrasive materials like used carpet. Toughness can also come into play as well as ductility, for edge holding ability, but this is mainly for large choppers.

Edge retention, or the rate at which blunting is induced is also not linear, so to make matters more complicated, how much of any advantage one material has is actually dependent on how far you let the blades dull before comparing how much material was cut.

-Cliff