Allegheny Technologies

Allegheny Technologies Incorporated is an American specialty metals company headquartered in Pittsburgh, Pennsylvania, in the United States. ATI is one of the largest and most diversified specialty metals producers in the world with revenue of $5.2 billion in 2011. 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.