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Cleveland-Cliffs manages and operates four iron ore mines in Minnesota and two mines in Michigan, one of which, the Empire Mine, has been indefinitely idled. [3] These mines produce various grades of iron ore pellets, including standard and fluxed, for use in blast furnaces as part of the steelmaking process as well as Direct Reduced (DR) grade pellets for use in direct reduced iron (DRI ...
Aleris was established in 2004, [2] the result of a merger between an aluminum recycling company and an aluminum rolled products company. [4] Aleris operated as a portfolio company of Texas Pacific Group, [6] and expanded via acquisitions during its early history.
Steel is an alloy composed of between 0.2 and 2.0 percent carbon, with the balance being iron. From prehistory through the creation of the blast furnace, iron was produced from iron ore as wrought iron, 99.82–100 percent Fe, and the process of making steel involved adding carbon to iron, usually in a serendipitous manner, in the forge, or via the cementation process.
Many material or standard specifications include a number of different UNS numbers that may be used within that specification. For example: UNS S30400 (SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel) could be used to make stainless steel bars or stainless steel plates for pressure vessels or pipes . Conversely, A312 pipes could be made ...
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels. These efforts were similar ...
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SIFCO is engaged in the production of forgings and machined components primarily for the aerospace and energy markets. SIFCO's products are made primarily of steel, stainless steel, titanium, and aluminum and include: OEM and aftermarket components for aircraft and industrial gas turbine engines, steam turbine blades, structural airframe components, aircraft landing gear components, aircraft ...
He retired from Otis Iron and Steel Company in 1899. By 1901, the Otis Iron and Steel Company merged with the Cleveland Rolling Mill Company into US Steel. [8] The Jones and Laughlin Steel Company bought the former Otis Steel company along the Cuyahoga River in Cleveland was purchased in 1942. Otis retired from the New Commercial National Bank ...