OK 67.51 SMAW Type Acid-rutile E2209-26 Description High-recovery, stainless electrode for welding ferritic-austenitic (duplex) stainless steels, such as UNS S31803 or the equivalent. Also excellent for joining duplex to CMn steels. Welding current AC, DC+ OCV 60 V Classifications EN 1600 E 22 9 3 N L R 53 SFA/AWS A5.4 E2209-26 Werkstoffnummer 1.4462 Typical all weld metal composition, % C Si Mn Cr Ni Mo Cu N <0.03 0.7 0.9 22.5 9.5 3.0 <0.2 0.16 Typical mech. properties all weld metal Yield stress, MPa 645 Tensile strength, MPa 800 Elongation A4, % 25 Charpy V Ferrite content FN 30-45 Test temps, °C Impact values, J +20 50 Approvals DNV For Duplex SS