SILVALOY A50N is a cadmium free silver brazing alloy. Addition of nickel to the silver-copper zinc alloy imparts corrosion properties which retards joint or interface corrosion of the brazed assembly. SILVALOY A50N is a suitable replacement to the cadmium containing BAg-3 alloy SILVALOY 50N. Its low liquidus of 1305°F reduces surface oxidation and sensitization to stainless steels.

The flux coating is a water base mixture consisting of potassium salts of fluorine and boron. The flux is extruded onto the rod and baked at precise time and temperature to impact sufficient bonding and hardness to the coating. Sufficient ductility remains in the coating to allow for generous bending of the rod to reach areas of difficult access. When the rod is placed into the torch flame, the flux will melt several hundred degrees before the alloy, flowing onto the work surface, and preparing the surface for the subsequent melting of the braze alloy.

Applications
Typical applications are the joining of 300 series stainless steels in the food, medical, and dental fields. The nickel element in SILVALOY A50N also improves the bond strength when joining of tungsten carbide cutting tips.