Harris Brazing Rod Water Cooler Brass body for longer service Style:All Terrain Brass body for longer service life ) Mode 18–22 gauge thin sheet (panels) 16–18 V 150–200 IPM 80–110 A Short circuit 16–18 gauge structural sheet 18–21 V 200–260 IPM 110–140 A Short circuit Lap fillet on 14 gauge 21–23 V 240–290 IPM 130–160 A SC or transition Cast iron cosmetic repair 17–20 V 180–240 IPM 100–130 A Short circuit Copper joining (14 gauge) 19–22 V 200–270 IPM 120–150 A Short circuit The key variable is shielding gas purity Conforms to AWS A5 HARRIS170 is a copper zinc nickel GTAW (TIG) alloy developed for braze welding steel and cast iron