I would not use SS brushes with quartz or ceramic (at least not ordinary ceramics, some of the aerospace types are not a problem) due to the risk of abrasion of the surface and loose particulates of sharp materials, which however inert are going to be bad news.
I would especially avoid using these with polymers/plastics (including silicones rubbers etc) that are in contact with the vapor or heat during normal operation of the vape.
Even ti is susceptible to abrasion from SS which is a harder metal. You'll also remove your seasoned layer from ti very quickly with an ss brush.
I find that the S & B brushes can be great for this job, won't necessarily withstand long term contact with a hot enail dish, but will stand the test over time IME for vaporizer chambers/cannisters.