Copper-phosphorous brazing/welding rods ideal for use in refrigeration, electrical and plumbing jobs to join copper tubing and pipe, electrical wires and flexible tubing. Excellent for soldering copper tubing connections even with water in the line. Contains 12-Inch rods. Tensile strength: 40,000 psi. Working temp: 1,310-1,475-Degree farenheit. Joins copper to copper without flux, or copper to copper alloys (brass, and bronze).