Flux

Removing of oxides and improvement of wetting characteristics

Different brazing applications call for the use of flux products. The brazing process can cause oxides on the surface of the metal. Oxides can cause issues while brazing that negatively affects  the final product. Flux can be applied to the joint to prevent exposure to the air and prevent oxides from being absorbed into the metal.

 

Different fluxes are used for different metals because the oxides produced vary based on the type of metal.

 

Product Brazing Alloy recommended base alloys Temp. Range [°C]
White Flux Phosphorous containing copper + silver brazing alloys ferrous and non-ferrous alloys, stainless steel and copper 565 – 870
Black Flux Phosphorous containing copper + silver brazing alloys ferrous and non-ferrous alloys, stainless steel and carbide. 565 – 980
GWH-LB Flux manganese and tin containing copper brazing alloys carbide, stainless steel, ferrous alloys 760 – 1205
SD3 Flux manganese and tin containing copper brazing alloys carbide, stainless steel, ferrous alloys 537 – 1100
L-127 Flux manganese and tin containing copper brazing alloys carbide, stainless steel, ferrous alloys 537 – 1100

Laminated braze

Vacuum Braze