Oerlikon Fluxinox 312 PF description: FLUXINOX 312 PF is an alloyed rutile flux cored wire with a fast-freezing slag for joining and surfacing of dissimilar steels, as well as galvanized steels. The ferritic-austenitic weld metal (Delta-ferrite approximately 50%) is non-scaling up to 1100C. FLUXINOX 312 PF is characterized by outstanding, almost spatter-free, welding properties. It produces finely rippled flat and smotth welds, free of undercut with very esay slag removal. FLUXINOX 312 PF is mainly used for joining dissimilar steels, difficult-to-weld steels, e.g. heat treatable steels, tool steels and high manganese steels, and for surfacing or repair welding, due to the fast -freezing slag, FLUXINOX 312 PF is used for welding in the horizontal (PD), overhead ((PE) and vertical-up (PF) positions.