In brazing and soldering tubing, we have a few things we need to accomplish to make a proper connection: We can’t overheat the joint to the point that it overheats the base metal or the flux where ...

Brazing and soldering practices are one of many areas in the HVACR field where what is commonly practiced isn’t what’s best, and what’s taught doesn’t apply in all cases. Let’s start with the basics.

Brazing joins parts by heating them to more than 840°F and applying a filler metal that has a melting temperature below that of the base metal. Filler metal flows into the joint by capillary ...