Harris ALUXCOR 4047 - Flux-cored Aluminum Brazing Alloy

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Harris ALUXCOR 4047 F15.3

Flux-cored Aluminum Brazing Alloy

Excellent strength and corrosion resistance for joining aluminum-to-aluminum or aluminum-to-copper or brass.  Free flowing with unequaled capillary attraction, ductility, and penetration.  ALUXCOR 4047 with flux formula 15.3 for hand brazing applications.

Typical Application:  Aluminum-to-aluminum, aluminum-to-copper, aluminum-to-brass.

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  • New round flux cored ring design
  • Protects the flux inside the wire until proper pre-heat which helps prevent silicon erosion from excess flux burn off on the tube
  • Seam prevents flux loss during shipping, loading onto the return bends, and in wire feed applications
  • Helps with return bend ring retention to prevent rings from moving or falling off return bends and crossovers


  • Core design releases the flux only after sufficient preheating so both the flux and alloy flows at the right time into the capillary
  • Strict flux percentage tolerance ensures that the flux is consistent throughout the wire for repeatable high performance flow of the alloy
  • We only use non-corrosive and non-hygroscopic flux with no flux binder


  • Residential HVAC manufacturers
  • Fabricated parts manufacturers
  • Coil Manufacturers
  • Automotive
  • Appliance


  • .062" x 20" x 1/2 lb Tube
  • .078" x 20" x 1/2 lb Tube