Oerlikon Inertfil 347 description: INERTFIL 347 is used for welding of 321 and 347 grade stainless steels. The wire is used for a range of applications, including the fabrication of pipe, plate and vessels. The weld metal has a high resistance to corrosive
media at service temperatures <400C. The presence of niobium reduces the possibility of intergranular chromium carbide precipitation and thus reduces the susceptibility to intergranular corrosion. Stainless steel wire for welding stabilized type AISI 321 and 347 austenitic steels.