Soldering Brazing Copper Tubing (1973)

Copper tubing can be joined using various methods, primarily soldering and brazing. Soldered joints are suitable for temperatures up to 250°F, while brazed joints are used for higher strength and temperatures up to 350°F. Proper techniques in cutting, cleaning, and applying flux are crucial for creating strong joints. The soldering process involves heating the joint until the solder melts and is drawn in by capillary action. For brazing, similar preparation steps are followed, and the filler metal is applied once the flux becomes transparent. Care must be taken to avoid overheating, and all flux should be removed before inspection. Successful joints require proper cleaning, fluxing, heating, and the correct filler metal.

Keywords:
copper tubing, soldering, brazing, joints, temperature, flux, cleaning, heating, filler metal, capillary action, techniques, inspection, pressure testing.