Aluxcor 4047

Aluxcor 4047 flux cored brazing wire is designed for manual and semi-automatic aluminum flame brazing. A common application is brazing HVAC aluminum components including return bends, headers, tube assemblies, and distributors. The flux core eliminates the need for a separate flux application and the core cross section is designed to release a measured amount of flux into the capillary. This ensures good oxidation protection and suitable capillary fill by the melted aluminum metal.

Aluxcor 4047 is available with different flux compositions. Each flux chemistry and ratio is designed to provide brazing characteristics engineered for your specific application.

Formula 15.1 is a potassium fluroaluminate salt with a melting range of 1049 ° – 1061° F, (564° – 572°C).

Formulas 15.2, 15.3 and 15.4 are cesium fluoroaluminate blends which lower flux activity temperature and corresponding brazing temperature. Inclusion of this compound also allows brazing of magnesium containing base metals like 6063.

All flux core compositions are non-hygroscopic so post braze flux residue does not need to be removed.