Bld522,
I have the Spyderco Wilderness in N690Co (Same as N690). After I got it I did some research on the steel. It has vanadeum (sp?) where as 440-c does not. It is actually much closer to VG10. I have read on at least two forums that it was basically German VG10. Very fine grain, stainless, a little tougher than VG10 or 440-c.
0170-6c is gone for good. The last batch was used up by Camalus. That is why Carbon V disappeared and why Mike Stewart of BRKT is searching for a new steel for his Golok.
Ronald Athay