Allegheny technologies incorporated [ati] is one of the world`s largest and most diversified producers of specialty metals. Ati produces a wide assortment of nickel-based super alloys which are for very high temperature service where relatively high stresses are encountered and where high surface stability is frequently required. Being a part of that corrosion resistant nickel alloy are made for applications in the chemical processing, petroleum refining, marine, heat treating, pollution and waste control industries where common 200, 300, and 400 series stainless steels may not provide adequate corrosion protection. The nickel alloys are useful for containers and piping, flue-gas desulphurization systems, waste incinerators, and sour gas service, pipe and tube for aggressive chloride environments, pumps, valves, and fittings.