Usually in the material selection process when wear is an issue, you choose the a softer material for the one most easily replaced, in this case the bolt plates if they aren't fixed. For fixed bolt plates, weight is a non issue, so choosing a similar alloy is ideal.
If weight is an issue for a non-fixed bolt plate, I'd be starting to look at some of the high strength* wought aluminium alloys (possibly one of the 7000 series), rather than looking at titanium.
* Might be issues wear and long term durability. |