From Business: United States Steel Corporation, headquartered in Pittsburgh, Pa., manufactures a wide variety of steel sheet, tubular and tin products; coke and taconite pellets. The steel…

From Business: ArcelorMittal Tubular Products, headquartered in Pittsburgh, is one of the largest producers of steel tubular products in North America. Its tubular engineering design and…

From Business: Allegheny Technologies is a world leader in the technology, production and marketing of specialty materials - stainless steels, silicon electrical steels, tool steels,…