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  2. Argon oxygen decarburization - Wikipedia

    en.wikipedia.org/wiki/Argon_oxygen_decarburization

    Argonoxygen decarburization (AOD) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminium. After initial melting the metal is then transferred to an AOD vessel where it will be subjected to three steps of refining; decarburization, reduction, and desulfurization.

  3. Electro-slag remelting - Wikipedia

    en.wikipedia.org/wiki/Electro-slag_remelting

    An example of the use of the electro-slag refined (ESR) steel technique is the L30 tank gun. CrNi60WTi is a stainless steel which is best formed by either electro-slag remelting or vacuum arc remelting. This alloy can be used for the construction of nuclear power plants. [3]

  4. AOD - Wikipedia

    en.wikipedia.org/wiki/AOD

    Argon oxygen decarburization, a process in stainless steel making; Automatic Overdrive transmission, a vehicle transmission; Above Ordnance Datum, a level expressed as a height above mean sea level; Adult Onset Diabetes, a metabolic disorder, characterized by high blood glucose

  5. Steelmaking - Wikipedia

    en.wikipedia.org/wiki/Steelmaking

    Steel mill with two arc furnaces. Steelmaking is the process of producing steel from iron ore and/or scrap.Steel has been made for millennia, and was commercialized on a massive scale in the 1850s and 1860s, using the Bessemer and Siemens-Martin processes.

  6. Electric arc furnace - Wikipedia

    en.wikipedia.org/wiki/Electric_arc_furnace

    Depending on the proportions of steel scrap, DRI and pig iron used, electric arc furnace steelmaking can result in carbon dioxide emissions as low as 0.6 tons CO 2 per ton of steel produced, [12] which is significantly lower than the conventional production route via blast furnaces and the basic oxygen furnace, which produces 2.9 tons CO2 per ...

  7. Converting (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Converting_(metallurgy)

    The converting process occurs in a converter. Two kinds of converters are widely used: horizontal and vertical. Horizontal converters of the Peirce-Smith type (which are an improvement of the Manhès-David converter ) prevail in the metallurgy of non-ferrous metals. Such a converter is a horizontal barrel lined with refractory material inside.

  8. Basic oxygen steelmaking - Wikipedia

    en.wikipedia.org/wiki/Basic_oxygen_steelmaking

    The first oxygen converters in the US were launched at the end of 1954 by McLouth Steel in Trenton, Michigan, which accounted for less than 1% of the national steel market. [3] U.S. Steel and Bethlehem Steel introduced the oxygen process in 1964. [3] By 1970, half of the world's and 80% of Japan's steel output was produced in oxygen converters. [3]

  9. 17-4 stainless steel - Wikipedia

    en.wikipedia.org/wiki/17-4_stainless_steel

    SAE Type 630 stainless steel (more commonly known as 17-4 PH, or simply 17-4; also known as UNS S17400) is a grade of martensitic precipitation hardened stainless steel. It contains approximately 15–17.5% chromium and 3–5% nickel, as well as 3–5% copper. [1] The name comes from the chemical makeup which is approximately 17% chromium and 4 ...

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