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The Pittsburgh-Des Moines Steel Company (originally the Des Moines Bridge and Iron Company), and often referred to as Pitt-Des Moines Steel or PDM was an American steel fabrication company. It operated from 1892 until approximately 2002 when its assets were sold to other companies, including Chicago Bridge & Iron Company .
The Jones and Laughlin Steel Corporation, also known as J&L Steel or simply as J&L, was an American steel and iron manufacturer that operated from 1852 until 1968. The enterprise began as the American Iron Company, founded in 1852 by Bernard Lauth and Benjamin Franklin Jones, about 2.5 mi (4.0 km) south of Pittsburgh along the Monongahela River ...
Companies consolidated into American Bridge Company; Company name Headquarters 1 Keystone Bridge Company: Pittsburgh, Pennsylvania: 2 Wrought Iron Bridge Company: Canton, Ohio
The Mon Valley Works–Irvin Plant is a steel processing plant operated by U.S. Steel and historically a "hot strip mill" (sometimes referred to as a "steel mill") in the Pittsburgh suburb of West Mifflin, Pennsylvania. The site consists of 650 acres on a hilltop 250 feet above the Monongahela Valley. [1]
The facility that eventually became South Works began in 1857 under the name of the North Chicago Rolling Mill, which was located in the northern part of the city of Chicago. [1] The plant later moved to South Chicago because raw materials could be shipped in via Lake Michigan , as well as an existing labor pool and available fresh water from ...
American Bridge Company was founded in April 1900, when J.P. Morgan & Co. led a consolidation of 28 of the largest U.S. steel fabricators and constructors. [2] The company's roots extend to the late 1860s, when one of the consolidated firms, Keystone Bridge Company , built the Eads Bridge at St. Louis , the first steel bridge over the ...
View of the SouthSide Works from the South Side slopes. The site first was used for industry starting in 1893 and was a long time steel mill. [2] Ling-Temco-Vought (LTV) purchased Jones and Laughlin Steel Company in 1974 and merged with Republic Steel in 1985, which formed LTV Steel Co. LTV became the second largest steel producer in the nation.
The Duluth Works was an integrated steel plant which took several raw materials and combined them in furnaces to make a product. Of those raw materials, iron ore, which was mined 70 miles (110 km) away from the Duluth Works on the Iron Range, was in plentiful and nearby supply, but coal, limestone and other materials were also needed to make steel.
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