Copper-based brazing alloys are suitable for use on steels, copper, copper alloys, nickel, nickel-based alloys and stainless steel for applications where corrosion resistance is not a priority. For more corrosion resistant alloys, Nickel Brazing Alloys should be used. Copper-based brazing alloys offer excellent ductility, wetability and low-cost joints for most applications.
| Name | Specifications Met | Nominal Composition | Solidus | Liquidus | ||||||
| AWS A5.8 | CDA | Cu | Zn | Other | oF | oC | oF | oC | ||
| 120 | 52 | 48 | 1600 | 871 | 1675 | 913 | INFO | |||
| This filler metal is a good general purpose brass brazing alloy that offers excellent ductility when making brazed joints on iron and nickel based alloys. | Color: | Brass Yellow |
| Specific Gravity: | - | |
| Density: | - | |
| Electrical Conductivity: | - | |
| Electrical Resistivity: | - |
| 130 | 55 | 44.5 | 0.5 Mn | 1575 | 857 | 1635 | 890 | INFO |
| This filler metal is suitable for joining most iron based alloys and steels. It produces a bright yellow fillet after brazing with excellent cosmetic characteristics. | Color: | Golden Yellow |
| Specific Gravity: | - | |
| Density: | - | |
| Electrical Conductivity: | - | |
| Electrical Resistivity: | - |
| 521 | 521 | 91.675 | 8 Sn, 0.325 P | 1620 | 882 | 1880 | 1027 | INFO |
| This filler metal is suitable for joining steel and other iron-based metals. It is most commonly used in furnace brazing applications where larger joint clearances (0.003"-0.005") are required. | Color: | Yellow-Red |
| Specific Gravity: | 8.80 | |
| Density: | .318 lb/in3 | |
| Electrical Conductivity: | 13% IACS | |
| Electrical Resistivity: | 13.3 mcΩ |
| 1980 | BCu-1a | 110 | 100 | 1980 | 1082 | 1980 | 1082 | INFO |
| This pure copper filler metal is used for brazing iron and nickel based alloys, most commonly on steels or copper-nickel materials. This filler metal is very fluid and works best with joint clearances less than 0.001". Most often used in furnace brazing applications without flux. | Color: | Orange-Red |
| Specific Gravity: | 8.92 | |
| Density: | 0.32 lb/in3 | |
| Electrical Conductivity: | 101% IACS | |
| Electrical Resistivity: | 1.71mcΩ |
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