ChannelFlux® 4047

This aluminum-silicon brazing filler metal is primarily used to braze aluminum. It is a high strength, low cost solution for most Al-Al applications, and is appropriate to use for production. Like all aluminum brazing, use of this alloy requires good process control. ChannelFlux 4047 utilizes a KAIF & CsAIF based polymer flux system and is available in wire, rod, and preforms.


Alloy Density 0.0963#/IN2
Solidus 1070 ºF
577 ºC
Liquidus 1080 ºF
582 ºC
Flux Nocolok® Cs
Flux Content 22%

Available Forms

Preforms Custom Shapes



Spooled Wire 10# per 12″Spool
Standard Rod Length 20 in


Download SDS Sheet

Bellman-Melcor distinguishes itself as a provider of premium quality brazing alloys at industry competitive prices. Our extensive inventory of brazing and soldering alloys ensures that in most cases your order can be available for immediate delivery.

Compare With

  • AWS: BAlSi-4


  • Brazing Temperature Range High: 1120 F / 604 C
  • Brazing Temperature Range Low: 1080 F / 582 C
  • Liquidus: 1080 F / 582 C
  • Solidus: 1070 F / 577 C



  • Al: 88%
  • Si: 12%

The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances. The company and product names referenced herein are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.

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