This is my first post to bikeforums, and I am utterly uninformed about brazing and metallurgy in general, knowing only what I've been able to glean from one evening of Google searches; basically I'm ignorant.

I work at a pottery studio, and I'm curious whether it would be possible to create a lugged steel frame in a large bisque kiln. Its probably an absurd concept.

Leaving methods for assuring proper joint alignment and stabilization, etc, to the imagination, if I were to use a high silver content, low-temperature brazing wire and a relatively thick walled tubeset, like classic 531, would it be possible to securely join the tubes by firing them in a kiln at 1200-1300f and allowing them to air cool, without causing the frame to become brittle or oxidized? If it would be possible and not totally illogical what sort of preparation would be involved?

Also what is the 'heat treatment' that differentiated the 753 tube set from Reynolds 531? I imagine it was something other than simply baking the tubes.

Any help or comments would be appreciated.