Stellite is the brand name (i.e., registered trade mark) of a hardfacing alloy made by Cabot Corp. of Kokomo, Indiana.
Get in touch with them and ask for their suggestions. They know their product better than anybody else.
Giovanni S. Crisi
Sao Paulo - Brazil

Kami;

We do quite a bit of stellite overlay here at my company, it is hard to guide you however without knowing what your job specific requirements are; i.e., governing code/standard.