Edgar Thomson Steel Works

Edgar Thomson Steel Works

The Edgar Thomson Steel Works is a steel mill in North Braddock, Pennsylvania.

History

The mill occupies the historic site of Braddock's Field, on the banks of the Monongahela River east of Pittsburgh, Pennsylvania. On July 5, 1755, in the Battle of the Monongahela, French and Indian forces from Fort Duquesne ambushed and defeated the expedition of British General Edward Braddock, who himself was mortally wounded.

Braddock's Field also was the site of a rally of rebellious militiamen and farmers during the Whiskey Rebellion, prior to a massive march on the city of Pittsburgh on August 1, 1794."The Planting of Civilization in Western Pennsylvania, Buck, Solon J.]

The site is on the banks of the Monongahela, which provides cost-effective, riverine transportation of coke, iron and finished steel products.

The Edgar Thomson Steel Works was designed and built because of the Bessemer process, the first inexpensive industrial process for the mass production of steel. In the process, air blowing through the molten iron removed impurities via oxidation. This took place in the Bessemer converter, a large ovoid steel container lined with clay or dolomite. [Wikipedia contributors, "Bessemer process," Wikipedia, The Free Encyclopedia, [http://en.wikipedia.org/w/index.php?title=Bessemer_process&oldid=91879677] (accessed September 25, 2006)]

In the summer of 1872, while in Europe, Andrew Carnegie learned about the Bessemer process. He returned to Pittsburgh with plans to build his own Bessemer plant. The main partners and stockholders were: Andrew Carnegie, William Coleman, Andrew Kloman, Henry Phipps, David McCandless Wm. P. Shinn, John Scott, David A. Stewart, and Thomas Carnegie. The firm was known as Carnegie, McCandless, and Company. [Hugh P. Meese, "Edgar Thomson Steel Works," [http://www.15122.com/3rivers/History/BraddocksField/EdgarThomson.htm] (accessed September 25, 2006)] The plant was named after J. Edgar Thomson, who was the president of the Pennsylvania Railroad.

On January 1, 1873, ground work broke on the Edgar Thomson Steel Works. It has been estimated that the plant was built for about $1.2 million. The mill was built by Alexander Holley, who also found a manager to run the mill, Capt. William Jones, a Civil War veteran. On August 22, 1875, the Edgar Thomson Steel Works' hulking Bessemer converter produced its first heat of liquid steel, destined to become 2,000 steel rails for the Pennsylvania Railroad. The mill was capable of producing 225 tons of steel rails per day. [“Len Boselovic: "Carnegie Plant That Made Pittsburgh the Steel City Marks 125th Anniversary," Pittsburgh Post-Gazette, August 22, 2000]

In 1892, the workers of the plant took part in the one of the most serious strikes in U.S. history. The Homestead Strike arose when Henry Clay Frick, an associate and partner of Carnegie’s, took over while Carnegie traveled to Scotland. Frick attempted to cut the wages of the steel workers. [Wikipedia contributors, "Homestead Strike," Wikipedia, The Free Encyclopedia, [http://en.wikipedia.org/w/index.php?title=Homestead_Strike&oldid=92042873] (accessed September 25, 2006)] The steelworkers at the Duquesne and Edgar Thomson Works joined the strike and shut their mills down in sympathy. [James D. Rose, Duquesne and the Rise of Steel Unionism (University of Illinois, 2001), 9-37] Frick took extreme measures. He brought in thousands of strikebreakers. When he sent in 300 Pinkerton guards to protect the strikebreakers, a riot broke out, resulting in 10 deaths and thousands of injuries. To prevent any further bloodshed, the Governor, Robert Pattison, sent two brigades to stop the fighting. Carnegie, McCandless and Company recommenced operations with non-union immigrant workers. [Wikipedia contributors, "Andrew Carnegie," Wikipedia, The Free Encyclopedia, [http://en.wikipedia.org/w/index.php?title=Andrew_Carnegie&oldid=92296142] (accessed September 25, 2006)]

In 1901, Carnegie sold the Carnegie Steel Company, including the Edgar Thomson Works, to J. P. Morgan, Elbert H. Gary and other investors, as part of the foundation of U.S. Steel.

Current operations

Today, two blast furnaces (Furnaces No.1 and No. 3) continue in operation at the Edgar Thomson Steel Works, which remains part of U.S. Steel. In 2005, the mill produced 2.8 million tons of steel, equal to 28% of U.S. Steel’s domestic production. The mill employs about 900 persons, some of whom belong to the second or third generations of their families to work in the mill. ["Carnegie Plant That Made Pittsburgh the Steel City Marks 125th Anniversary’," Pittsburgh Post-Gazette, August 22, 2000]

Among improvements to its physical plant is a $250 million continuous caster, which converts liquid steel directly into slabs, installed in 1992.

In April 1995, the mill was designated a historic landmark by ASM International, a society that honors works of structural engineering. Other structures honored by the society are the Statue of Liberty and the Eiffel Tower.


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References


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