Brazing & Soldering Products

Lucas-Milhaupt offers the most comprehensive inventory of alloys and forms in the industry and our expertise in brazing and soldering ensures that we can find the best-matched products for your needs.

Technical Documentation

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Aluminum Filler Metals

When you purchase Lucas-Milhaupt aluminum filler metals, not only do you get the finest filler metal on the market, you get over 75 years of Lucas-Milhaupt technical expertise at your fingertips, access to our regional team managers to work with you and your team.

Aluminum brazing filler metals are used to join common aluminum alloys and aluminum to copper. These filler metals are widely used in HVAC/R industry and automobile industry. Lucas-Milhaupt also offers aluminum flux-cored wire and rings and our new triangular-shaped aluminum brazing ring, giving you the precision and speed for effective aluminum coil joint brazing.

Available Aluminum Filler Types and Materials

These Lucas-Milhaupt materials are available in

  • Wire
  • Strip
  • Powder
  • Paste (both corrosive and non-corrosive formulations)
  • Preformed rings and shapes

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Product SolidusLiquidusNominal Composition, %AWS & International Standards Technical Documents* SDS Safety Documents
°F °C °F °C Al Cu Si Zn
Al 716

Available in wire and preforms. Wide melting range (less fluid) filler metal.

970 521 1085 585 86 4 10   BAlSi-3, AMS 4184, AA 4145
Al 718

Available in strip, wire, powder, paste and preforms. Most fluid of the aluminum filler metals.

1070 577 1080 582 88   12   BAlSi-4, AMS 4185, AA 4047
Al 719

Available as a powder or paste.

960 516 1040 560 76 4 10 10 AA 4245
Al 802

Available as wire and preforms. High temperature solder for aluminum.

710 377 725 385 2     98  
Al 822

Available as wire and preforms. High strength, low temperature braze for joining aluminum to aluminum and aluminum to copper.

800 426 900 482 22     78