Grade 7 has very good weldability. Being substantially single phase material, the microstructure of the alpha phase is not affected greatly by thermal treatments or welding temperatures.Therefore, the mechanical properties of a correctly welded joint are equal to, or exceed those of the parent metal and show good ductility.
Chemical composition (weight %) (Maximum values unless range is shown)
Good corrosion resistance for chemical processing industry applications in which the liquid medium is mildly reducing or varies between oxidizing and reducing. Palladium improves resistance to crevice corrosion. Grade 7 has good formability