Allegheny Technologies Incorporated (ATI) is a diversified specialty metals producer. The Company's products include titanium and titanium alloys, nickel-based alloys and superalloys, zirconium, hafnium and niobium, advanced powder alloys, stainless and specialty steel alloys, grain-oriented electrical steel, tungsten-based materials and cutting tools, carbon alloy impression die forgings, and grey and ductile iron castings. Its specialty metals are produced in a range of alloys and product forms. It operates in three segments: High Performance Metals segment, Flat-Rolled Products segment and Engineered Products segment. On May 9, 2011, the Company acquired Ladish Co., Inc. In November 2013, Allegheny Technologies Inc has completed the sale of its tungsten materials business to Kennametal Inc.