CrInoxTIG 316LSi is primarily intended for welding the low carbon, molybdenum alloyed, acid resisting 316L austenitic stainless steels of similar composition. It is also suitable for grade 316 material and the Nb or Ti stabilised grades 347 and 321, provided service temperatures for structural work are below 350 °C. The higher silicon content provides a more fluid weld pool which may be preferred for certain welding applications.