OK 67.55 SMAW Type Basic E2209-15 Description OK 67.55 is a basic coated electrode specially designed for the welding of duplex stainless steel, e.g. UNS S31803. The deposited weld metal gives very high ductility down to -50°C/- 60°C. Particularly suitable for welding duplex pipes in offshore applications. Welding current DC+ Classifications EN 1600 E 22 9 3 N L B 2 2 SFA/AWS A5.4 E2209-15 Werkstoff Nr. 1.4462 Typical all weld metal composition, % C Si Mn Cr Ni Mo N <0.04 0.5 0.9 22.5 9.3 3.0 0.15 Typical mech. properties all weld metal Yield stress, MPa 650 Tensile strength, MPa 800 Elongation A5, % 28 Charpy V Ferrite content FN 35-50 Test temps, °C Impact values, J +20 100 -20 85 -40 75 -60 65 Approvals DNV For duplex SS Sepros UNA 409820 UDT EN 1600 VdTÜV 06774
