OK 67.71 SMAW Type Acid-rutile E309MoL-17 Description OK 67.71 is an over-alloyed, high-recovery electrode for welding transition layers when surfacing mild steel with stainless and joining stainless steel to other types of steel. The ferritic-austenitic weld metal is very crack resistant. Welding current DC+, AC OCV 70 V Classifications EN 1600 E 23 12 2 L R 5 3 SFA/AWS A5.4 E309MoL-17 Werkstoff Nr. 1.4459 Typical all weld metal composition, % C Si Mn Cr Ni Mo Cu <0.04 0.7 0.9 23.0 13.0 2.8 <0.2 Typical mech. properties all weld metal Yield stress, MPa 500 Tensile strength, MPa 620 Elongation A5, % 35 Charpy V Ferrite content FN 12-22 Test temps, °C Impact values, J +20 55 -60 30 Approvals DNV 309 Mo SS EN 1600 UDT EN 1600 VdTÜV 02484
