Oerlikon Nirod Ni1 description: NIROD Ni1 is an S Ni 2061 / ER Ni-1 type solid TIG welding rod depositing Ni-3Ti1Mn weld metal. Suitable for use with inert schielding gases. NIROD Ni1 is used for welding pure nickel alloys and for dissimilar welding applications. Applications include process equipment handling alkalis and halides including chlorination and evaporation of caustic soda. NIROD Ni1 contains sufficient titanium to control the weld metal porosity.