Turbo Braze supplies aluminum brazing alloys in paste, powder, wire and preforms. The most commonly used aluminum brazing alloy is our 718 alloy, which offers the best combination of melting temperature, joint strength, versatility and corrosion resistance.
| Name | Specifications Met | Nominal Composition | Solidus | Liquidus | ||||||
| AWS A5.8 | AA | Al | Si | Other | oF | oC | oF | oC | ||
| 716 | BAlSi-3 | 4145 | 86 | 10 | 4 CU | 970 | 521 | 1085 | 585 | INFO |
| This filler metal is a general-purpose aluminum brazing alloy suitable for joining most aluminum alloys. It is also suitable for use when joining titanium, aluminum-copper and aluminum-copper-silicon, although consideration must be given to the potential for galvanic corrosion when brazing dissimilar metals. 716 has a wider melting range than the 718 brazing alloy which makes it useful for applications where large or inconsistent joints are common. | Color: | Silver-Gray |
| Specific Gravity: | 2.71 | |
| Density: | .098 lb/in3 | |
| Electrical Conductivity: | - | |
| Electrical Resistivity: | - |
| 718 | BAlSi-4 | 4185 | 88 | 12 | - | 1070 | 577 | 1080 | 582 | INFO |
| This filler metal is a the most commonly used aluminum brazing alloy. It is suitable for joining all brazeable aluminum alloys using all common heating methods. This alloy is quite fluid when molten and exhibits excellent penetration of brazed joints. | Color: | Silver-Gray |
| Specific Gravity: | 2.66 | |
| Density: | .096 lb/in3 | |
| Electrical Conductivity: | 41% IACS | |
| Electrical Resistivity: | - |
| 719 | 76 | 10 | 4 Cu, 10 Zn | 960 | 516 | 1040 | 560 | INFO |
| This filler metal is suitable for joining most brazeable aluminum alloys when using flux. It is not suitable for vacuum brazing because of the potential to vaporize zinc. Has poorer corrosion resistance than either 716 or 718. | Color: | Silver-Gray |
| Specific Gravity: | 2.91 | |
| Density: | .105 lb/in3 | |
| Electrical Conductivity: | 41% IACS | |
| Electrical Resistivity: | - |
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