ArcelorMittal Dofasco
ArcelorMittal Dofasco is a steel company based in Hamilton, Ontario, Canada. Dofasco is a standalone subsidiary of ArcelorMittal, the world's largest integrated steel producer. History Clifton and Frank A. Sherman founded Dominion Foundries and Steel in 1912, creating a giant that would bring prosperity and identity to the city of Hamilton, Ontario. Dofasco was incorporated as Dominion Steel Castings Company Limited in 1912, becoming Dominion Foundries and Steel Company in 1917. Sherman Mine opened in 1968 and closed in 1990. Its longtime nickname "Dofasco" was adopted as its legal name in 1980. Frank H. Sherman (Frank A.'s son) introduced to Dofasco and North America in 1954 the method of steel production known as basic oxygen steelmaking (BOS), thus rendering former processes obsolete because, with respect to them, the same quantity of steel from a BOS process is manufactured in one-twelfth the time. Basic oxygen steelmaking is superior to previous steelmaking methods beca ...
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