How does Titanium (Ti) preform threading into stainless steel?

Question:

We have areas in our machines that require all stainless structure with  fasteners and thread galling is an issue.  Also roughly how much more are the Ti fasteners?

normally the titanium tends to seize by its nature. usually we can make three types of surface treatments, in order to help against galling:

1) hard anodized blue

2) application of a lubricating grease spray

3) application of lubricant in PVD hard