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  2. U.S. Steel - Wikipedia

    en.wikipedia.org/wiki/U.S._Steel

    The U.S. Steel Tower in Pittsburgh, Pennsylvania, is named after the company and since 1970, the company's corporate headquarters have been located there. It is the tallest skyscraper in the downtown Pittsburgh skyline, built out of the company's Corten Steel. [95]

  3. Pittsburgh-Des Moines Steel Co. - Wikipedia

    en.wikipedia.org/.../Pittsburgh-Des_Moines_Steel_Co.

    The company was founded in 1892 by two graduates of Iowa State College, William H. Jackson and Berkeley M. Moss. [8] The partners initially contracted to have their steel tanks fabricated by Keystone Bridge Company of Pittsburgh, but soon took on a third partner, Edward W. Crellin, who was operating a small fabricating shop in Des Moines, Iowa.

  4. Carnegie Steel Company - Wikipedia

    en.wikipedia.org/wiki/Carnegie_Steel_Company

    Blast furnaces and iron ore at the Carnegie-Illinois Steel Corporation mills in 1941. Carnegie Steel Company was a steel-producing company primarily created by Andrew Carnegie and several close associates to manage businesses at steel mills in the Pittsburgh, Pennsylvania area in the late 19th century.

  5. Wheeling-Pittsburgh Steel - Wikipedia

    en.wikipedia.org/wiki/Wheeling-Pittsburgh_Steel

    In 1994, Wheeling-Pittsburgh Steel reorganized into a holding-company structure, where the newly formed WHX Corporation would become the parent company of Wheeling Pittsburgh Steel. In 2001, the company filed for bankruptcy protection again after posting a major loss and increasing debt. In 2003, the company emerged from bankruptcy protection ...

  6. Ampco Pittsburgh - Wikipedia

    en.wikipedia.org/wiki/Ampco_Pittsburgh

    Ampco-Pittsburgh Corporation (American Metal Products Company) is a specialty steel manufacturer headquartered in Downtown Pittsburgh, Pennsylvania. [3] It is one of several companies to bear the Ampco name, and it should not be confused with the Milwaukee-based copper base alloy producer, Ampco Metal Inc.; the Miami-based cabinetry company; the Swiss aluminum corporation; or the Dallas-based ...

  7. U.S. Steel expects to shut mills if $14.9 billion ... - AOL

    www.aol.com/news/u-steel-expects-shut-mills...

    (Reuters) -U.S. Steel would close mills and likely move its headquarters out of Pittsburgh if the $14.9 billion buyout by Nippon Steel collapses, the Wall Street Journal reported on Wednesday ...

  8. History of Pittsburgh - Wikipedia

    en.wikipedia.org/wiki/History_of_Pittsburgh

    H.J. Heinz, Pittsburgh Plate Glass, Alcoa, Westinghouse, U.S. Steel and its new division, the Pittsburgh Chemical Company and many other companies also continued robust operations through the 1960s. [ 11 ] 1970 marked the completion of the final building projects of Renaissance I: the U.S. Steel Tower and Three Rivers Stadium . [ 27 ]

  9. Pittsburgh - Wikipedia

    en.wikipedia.org/wiki/Pittsburgh

    An aerial view of Pittsburgh in 1902 [41] Steel mills in the Strip District in 1906. In 1901, J. P. Morgan and attorney Elbert H. Gary merged Carnegie Steel Company and several other companies into U.S. Steel. By 1910, Pittsburgh was the nation's eighth-largest city, accounting for between one-third and one-half of national steel output.