OK Tigrod 19.30 GTAW ERCuSi-A Description Bare copper wire for the GTA joining of copperzinc alloys and low-alloyed copper alloys. OK Tigrod 19.30 is alloyed with silicon and manganese and has good flow properties and wear resistance. The alloy is widely used in the joining of zinc-coated steel sheets andfor joining lowand non-alloyed steels and cast iron. OK Tigrod 19.30 is normally welded with pure Ar as the shielding gas. Welding current DC(-) Classifications SFA/AWS A5.7 ERCuSi-A EN 14640 S Cu 6560 (CuSi3Mn1) Wire composition Si Mn Cu Sn Zn Fe 3.4 1.1 >94.0 <0.2 <0.2 <0.3 Typical mech. properties all weld metal Yield stress, MPa 150 Tensile strength, MPa 350 Elongation, % 40 Charpy V Test temps, °C Impact values, J +20 30
