The alloy of choice for brazing most grades of aluminum. Available in both brazing wire and brazing strip form. Widely used in the automotive and heat transfer industries. Most commonly used for induction and torch brazing. AWS A5.8 (BAlSi-4)


Melting Pt. 1070 ºF
577 ºC
Flow Pt. 1080 ºF
582 ºC
MBT1 1120
Preform Options Brazing Discs Brazing Rings Brazing Shims 
Brazing Washers 
Custom Shapes 
Resale Options Brazing Rod 
Brazing Strip 
Brazing Wire 
Flux Dispensable
Approx. Wire Length (BCuP/lb.) (BAg/Tr.oz) 13754 in @ 0.031 diameter 
1529 in @ 0.093 diameter 
3440 in @ 0.062 diameter

Physical Constants

Color Silver
Density 0.0963 lb./cu.in


The standard alloy for most aluminum brazing applications - used extensively in automotive applications.


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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

  • AMS: 4185
  • AWS: BAlSi-4
  • Lucas: Al 718
  • UNS: A94047


  • 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: 86.45%
  • 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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