Oerlikon Fluxinox 25 4 description: FLUXINOX 25.4 is an alloyed rutile flux cored wire for the joint welding of heat resistant Cr and Cr-Ni steels and cast steel. The weld metal is ferritic- austenitic. Due to the low nickel content, applications include weldments subject to sulphur-bearing, reducing or oxidizing atmospheres. It is non-scaling up to 1100 °C. FLUXINOX 25.4 is characterized by outstanding, almost spatter-free, welding properties. Very easy slag removal, finely rippled and shiny welds, free of undercut into the base metal.