Brazing Alloys for Joining Aluminum to Copper
Join aluminum to copper and copper-based alloys, such as brass and bronze. These alloys don’t contain cadmium, so they’re safer than other brazing alloys with cadmium and help you meet industry regulations.
For technical drawings and 3-D models, click on a part number.
Material Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Zinc | Aluminum | Cadmium | Melting Temperature Range, ° F | Braze Type | Dia. | Lg. | Pkg. Qty. | Pkg. | |
For Joining Aluminum, Brass, Bronze, Copper | |||||||||
| 85% | 15% | 0% | 720° to 845° | Flux Required | 5/64" | 20" | 13 | 0000000 | 00000 |
Flux-Included Brazing Alloys for Joining Aluminum to Copper
Flux is already built into these alloys, so there’s no need to add it when joining aluminum to copper. These alloys don’t contain cadmium, so they’re safer than other brazing alloys with cadmium and help you meet industry regulations.
For technical drawings and 3-D models, click on a part number.
Material Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Zinc | Aluminum | Cadmium | Melting Temperature Range, ° F | Braze Type | Dia. | Lg. | Pkg. Qty. | Pkg. | |
For Joining Aluminum, Copper | |||||||||
| 78% | 22% | 0% | 800° to 900° | Flux Core | 0.09" | 20" | 4 | 0000000 | 000000 |
Brazing Alloys for Aluminum
Join aluminum to aluminum. These alloys do not contain cadmium, so they are safer to use than alloys with cadmium and help meet industry regulations.
BAlSi-3 alloys are good for filling in large gaps because they melt into a thicker liquid than BAlSi-4 alloys.
Material Composition | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| AWS Material Code  | Aluminum | Silicon | Cadmium | Melting Temperature Range, °F | Braze Type | Dia. | Lg., ft. | Wt., oz. | Includes | Each | |
| BAlSi-4 | 88% | 12% | 0% | 1070° to 1080° | Flux Required | 1/16" | 10 | 0.75 | 1/3 oz. Tube of Flux | 0000000 | 000000 |
| BAlSi-3 | 90% | 10% | 0% | 970° to 1085° | Flux Required | 3/64" | 33 | 1.1 | __ | 00000000 | 00000 |
| BAlSi-3 | 90% | 10% | 0% | 970° to 1085° | Flux Required | 1/16" | 19 | 1.1 | __ | 00000000 | 00000 |
No-Flux Brazing Alloys for Aluminum
No need to add flux when brazing aluminum parts such as radiators, power tools, and castings—these alloys don’t require it. All have excellent corrosion resistance. They don’t contain cadmium, so they’re safer than other brazing alloys with cadmium and help you meet industry regulations.
For technical drawings and 3-D models, click on a part number.
No-Clean Brazing Flux for Joining Aluminum to Copper
Clean and prepare surfaces before joining aluminum to copper. With minimal residue, this flux does not require cleanup.