Silver/Copper/Phosphorus-For copper. Not for nickel or ferrous metals. Uses phosphorus as a fluxing agent. Brazing is a metal-joining process, using a filler metal in place of standard solder. Brazing makes bonds that are stronger than a solder on materials that welding would melt. These brazing alloys join most metals and alloys except aluminum and magnesium. Perfect for fastening tips to tools. Composition Percentage: Ag: 5 Cu: 89 Zn: - Sn: - P: 6 Note: Ag = Silver, Cu = Copper, Zn = Zinc, Sn = Tin, Ni = Nickel, and P = Phosphorus. Melting Temperature: 1190° - 1500° F Diameter: 1/16" Length: 20" Package Quantity: 12 Additional Information: Prices may fluctuate with the cost of silver. Alloys without Cadmium - All are ROHS compliant.