Allegheny Technologies Incorporated is an American specialty metals company headquartered in Pittsburgh, Pennsylvania, in the United States. ATI's key markets are aerospace and defense, oil & gas, chemical process industry, electrical energy, and medical. Products are titanium and titanium alloys, nickel-based alloys and superalloys, grain-oriented electrical steel, stainless and specialty steels, zirconium, hafnium, and niobium, tungsten materials, forgings and castings.
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