OK Autrod 19.12 GMAW ERCu Description A continuous, solid, copper wire for the GMA joining of oxygen-free, pure copper and low-alloyed copper. OK Autrod 19.12 is alloyed with tin and has good flow properties. OK Autrod 19.12 is normally welded with pure Ar as the shielding gas. Welding current DC(+) Classifications SFA/AWS A5.7 ERCu EN 14640 S Cu 1898 (CuSn1) Wire composition Si Mn Cu Sn 0.3 0.3 >98.0 0.8 Typical mech. properties all weld metal Yield stress, MPa 75 Tensile strength, MPa 220 Elongation, % 30 Charpy V Test temps, °C Impact values, J +20 75 -20 40
