Q : I am looking to purchase a ceramic threaded rod, but I was curious as to its compatibility with metal. The mount I intend to use made of stainless steel; would this mate well with a ceramic rod?
A: While you might be able to thread the ceramic rod into a female thread, the biggest problem you may encounter if there are elevated temperatures is the mismatch in thermal expansion. Because the ceramic is brittle, the steel’s expansion may crack the ceramic. Typically ceramics are used because of their high temperature and corrosive resistance, as well as electrical insulation properties. For example, Alumina is offers usability to 3000°F, where as stainless cannot handle such extreme temperatures.
If you are not using the ceramic at elevated temperatures the the parts should thread as they are made to ANSI standards.