CPMD2 Brainfart/Suggestions/Problems to Avoid?

M

mgysgthath

Joined
Dec 15, 2009
Messages
1,008
Hey all!

I've been taking a bit of a break from knife-making, professional life demanding some attention. I may be taking over the business I'm working at, which is a first for me so pretty attention grabbing. It has unfortunately also put my hydraulic press build on hold, as funds need to be devoted to this for a while. I was really looking forward to that press too. Oh well, all in due time.

That said I thought I would try a "higher end" steel for a change, once I get done with the 5160 blades I have to grind/HT. Also as I don't have a kiln yet I am going to send the D2 out of course.

Problem is I don't know what to make -- knife-maker's block? I got a 5/32x1.5" bar 9 inches long and I'm just looking for suggestions along the lines of what you think CPMD2 is best suited for practically, as well as suggested RC levels for the intended use. Shapes are welcome but I think I need to start sketching.

What I am currently thinking is something like a SOG Seal Pup Elite only without the jimping and without the hated choil. Or possibly a Fallkniven F1 inspired blade.

Any known problems with CPMD2 I should try to avoid?

Thanks for your advice guys, as always!
 
5/32" is ideal for hunter,skinner,general camp use knives.Just do your finish work before H/T,Edge at about .015-.020,sanded up to about 600 grit or better.
Stan
 
I completely agree with Stan. The piece you have is just about the perfect size for the types of knives you described.
I can't think of any real "problems" with CPM-D2, other than it needs cryo to get rid of RA and it's a bear to hand-sand after HT. It will take a much better-looking finish than regular D2 and should be a little tougher.
 
Only problem with CPM D2 is I don't have enough of it! Seriously, it's one of my favs. Really good stuff, IMO.
 
Thanks guys :) How high can I take the RC and still have it remain tough enough for rough outdoorsy tasks (whittling, light prying, batoning etc)? I'm not familiar at all with D2, and this will be my first stainless as well as first CPM steel experience. I think I have seen CPMD2 at higher than what I'd expect to see a simpler steel get chippy at, but like I said I have zero experience with it; I'd rather err on the side of caution RC wise.

James, I think the place that will HT for me does Cryo, but I'm not sure what RA stands for? I probably know and have forgotten -- but I will double check they do cryo.

Dan, a nice view of Melissa :P
 
I like CPM D2 at 59Rc,RA is retained austinite and cryo is very good.
Stan
 
You must log in or register to reply here.
Back
Top