OK Tigrod 13.22 GTAW ER90S-G Description OK Tigrod 13.22 is a 2.5Cr-1.0Mo-alloyed, copper- coated rod for the GTAW of creep-resistant steels such as pipes in pressure vessels and boilers of similar composition, with service temperatures of up to 600°C, but it is also suitable for welding high strength steels. Welding current DC(-) Classifications SFA/AWS A5.28 ER90S-G DIN 8575 W.nr 1.7384 EN 12070 W CrMo2Si Wire composition C Si Mn Cr Mo 0.08 0.7 1.0 2.6 1.0 Typical mech. properties all weld metal SR 750°C/0.5h Yield stress, MPa >400 Tensile strength, MPa >500 Elongation, % >18 Charpy V Test temps, °C Impact values, J +20 200 Approvals Sepros UNA 046731 UDT EN 12070 VdTÜV
