Oerlikon Ferinox description: Rutile coated high-efficiency MMA electrode with a recovery of 160% for welding ferritic to austenitic steels. Overlays on un- or low alloyed steels is already corrosion resistant in the first layer. Highest operating temperature for dissimilar steel joints is <300C. Easy striking and restriking, metal transfer is in fine droplets, good fusion of the joint faces, with easy slag removal to leave a finely rippled bead surface.