Titanium Brazing Flux is a paste flux that promotes successful braze joints for titanium using conventional torch brazing techniques. Please review guidelines below for effective use.
Guidelines to Working with the Titanium Flux
Titanium Brazing Flux is composed of various fluorides enclosed in a binder. The flux is formulated for use with BAg 34 (A38T) Silver Alloy. Upon heating the Titanium Brazing Flux, the flux's binder burns off; the inorganic fluorides sinter and then melt at about 1000-1100°F (538-590°C). When molten the Titanium Brazing Flux protects the titanium substrate from oxidation. However the Titanium Brazing Flux no longer protects the titanium against oxidation if the substrate is heated much above 1500°F/815°C (cherry red).
Following are directions for achieving the best results:
Titanium oxidizes rapidly at elevated temperatures, and it is critical to work in the temperature zone where the Titanium Brazing Flux is still active and protective. Otherwise, the silver alloy will ball up and not wet the titanium. The Titanium Brazing Flux requires careful working of the torch, so as to stay within the safe temperature range.