Stellite recipe anyone?

[jackG]

I was aware of stellite from my experience in military nuclear propulsion. The stuff is used on valve seats in the primary side of reactor coolant systems. Not surprising, its in there because of hardness and corrosion resistance. A reactor coolant system is very grim place. It actually crossed my mind years ago that it might be used for blades, but I always assumed it would be too brittle. What, other than Co-59 is in the mix and how does it compare to say, CM154, BG42, etal, in ductility, and other steel characteristics? Could it be used in a flexible blade such as a fillet knive? Thanks

 

[Walt Welch]

Boy are you in the wrong place! Get over to the general forum, and search under the blade discussion forum. Search for Stellite and Talonite; don't forget to search the archives as well. This topic has been extensively debated for a few years.

To answer your questions directly, Stellite and Talonite both tend to be rather soft compared with steel, and slight turning of the blade edge is not uncommon. It is quite flexible, and would make a great fillet knife. I comissioned a chef's knife, and it is working wonderfully. You can search the relevant posts.

Elemental compositions of alloys are most easily found at the Mat Web site:
http://www.matweb.com/ here is the composition of Stellite 6K:

Component Wt. %
C 1.4 - 1.9
Co 49.1 - 55.6
Cr 28 - 32
Component Wt. %
Fe Max 3
Mn Max 2
Mo Max 1.5
Component Wt. %
Ni Max 3
Si Max 2
W 3.5 - 5.5

I will leave the rest of your questions to your search, which will answer them. Walt