A new highly alloyed (Cr, Mo, W, N) upper austenitic grade has been developed. This grade offers high mechanical properties combined with excellent corrosion resistance in chloride acid media. This grade is particularly designed for applications in chloride, oxidizing acid media encountered in the chemical, transportation, pollution control, offshore and pulp and paper industries. Mechanical properties, corrosion resistance and weldability of this grade are presented and compared
to that of other stainless steels and nickel base alloys.
Keywords : super austenitic stainless steel, mechanical properties, structure stability, corrosion resisttince, weldability.