OK Tigrod 12.60 GTAW ER70S-3 Description OK Tigrod 12.60 is a copper-coated Mn-Sialloyed W2Si/ER70S-3 solid rod for the GTAW of non-alloyed steels, as used in general construction, pressure vessel fabrication and shipbuilding. Welding current DC(-) Classifications SFA/AWS A5.18 ER70S-3 EN 1668 W2Si Wire composition C Si Mn 0.1 0.6 1.1 Typical properties all weld metal Yield stress, MPa 420 Tensile strength, MPa 515 Elongation, % 26 Charpy V Test temps, °C Impact values, J -30 90 Approvals Sepros UNA 485178
