Over the years I’ve helped many brazing shops resolve common brazing problems (such as leakers, non-wetting surfaces, etc.). In evaluating these situations, it is not uncommon to discover that sub-components (such as brackets or fittings, etc.) from outside suppliers can actually be the troublemakers!
Brazing, when performed correctly, is a joining process that produces a permanent bond between two or more materials by heating them to a temperature above 450°C (840°F), but lower than the melting-temperature of any of the materials being joined.