With the proper torch and equipment, brazing 304 stainless is a simpleton job to learn. I Flame Brazing stress bare bronze alloy for brazing because you desire to be able to use copious amounts of meld to the joint. Utilizing the flux at the decently temperature is crucial. The flux I used was a white paste Brazing Bronze general intention immix which is designed for most metals. If utilised too hot then it will sting and the surface of the stainless will be a sticky disconsolate brown color that will never permit brazing to occur. You motivation to utilise the torch flame to heat it just ahead the metal discolors and use the commingle allowing to run and protect the stainless steel. At the decent temperature, a commons shade will be noticed in the immix layer as this is the chromium oxide being fluxed croak from the stainless steel surface. You then apace heat up the joint with the torch with the brazing rod until a molten bead looks and it should stick the stainless at this point. If you do find yourself with a blackish brown mess, you will receive to grind it off to shiny stainless ahead you may Brazing Cast Iron retry.