Oerlikon Nifil Ni1 description: NIFIL Ni1 is suitable for welding pure nickel alloy to itself and dissimilar metal welding applications. Applications include process equipment handling alkalis and halides including chlorination and evaporation of caustic soda. NIFIL Ni1 contains sufficient Titanium to control weld metal porosity. Solid wire for welding or hardfacing alloys with the same chemical composition. Good appearance and excellent resistance to chemical agents.