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Ferrotungsten |
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ferrotungsten [¦fe·rō′təŋ·stən]
(metallurgy) A crude ferroalloy containing tungsten and used in steelmaking. Ferrotungsten a ferroalloy consisting of either 68–72 percent or 78–86 percent W and up to 7 percent Mo (Fe and impurities constituting the remainder). Ferrotungsten is produced in ore heat-treating furnaces by a combination of silicothermic and carbothermic-reduction processes from wolframite and scheelite concentrates. The ferrotungsten is scooped out of the furnace by the steel ladles of a special machine. High-grade ferrotungsten is smelted so as to form a block, which after cooling is broken down. Ferrotungsten is used mainly in the production of tool steels (high-speed steel) and heat-resistant alloys. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | 27151 Tungsten Rd, Cleveland OH 44132-2940, 216/289-4555, FAX: 216/289-0939 SATELLITE SALES LTD, 9071 Devonshire Drive, Olmsted Falls OH 44138, 440/759-7149, FAX: 440/427-1717 FERROTUNGSTEN ASI INTERNATIONAL INC, 1440 East 39th St, Cleveland OH 44114, 216/391-9900, FAX: 216/391-9933 DAVID J JOSEPH CO, 300 Pike St, Cincinnati OH 45202-4222, 513/419-6200, FAX: 513/419-6224 HOC METALS INC, 101 Merritt 7, Norwalk CT 06851-6215, 203/840-8494, FAX: 2031840-8497 REMELT SOURCES, INC. of Korea, Thailand (Scheelite and Wolframite), Brazil (Primarily Scheelite), Uzbekistan (includes corresponding Graph/Chart) II-14 Table 5: Global Tungsten Reserves and Reserve Base: 2004-2005 (In Thousand Metric Tons) (includes corresponding Graph/Chart) II-15 Mining and Refining II-15 Ammonium Paratungstate (APT) II-15 Tungsten Metal Powder II-15 Ferrotungsten II-15 Tungsten Carbide II-16 Tungsten Carbide Minimizes Wear II-16 Alloys of Tungsten II-16 Tungsten Copper Alloy II-17 4. FERROTUNGSTEN ASI INTERNATIONAL INC, 1440 East 39th St, Cleveland, OH, 44114, 216/391-9900, FAX: 216/391-9933. |
Ferrotungsten |
ferromolybdenum ferromolybdenum ferronickel ferronickel Ferroniobium ferrophosphorus ferroporphyrin Ferroprobe Ferroprobe Flaw Detection ferroprotein Ferroprussiate ferroprussiate paper Ferroprussic ferroresonant circuit ferroresonant power supply ferroresonant static inverter ferrosilicon ferrosilicon ferrosilicon process Ferrosilite Ferrosilite Ferrosilite-Fayalite-Quartz Ferroso- ferrospinel ferrotherapy Ferrotin Ferrotin Ferrotin Ferrotitanium ferrotremolite Ferrotungsten ferrotypeferrotype ferrouranium ferrous ferrous ferrous ferrous acetate ferrous alloy Ferrous ammonium sulfate Ferrous Ammonium Sulphate Ferrous and non-ferrous metals ferrous arsenate Ferrous Basic Integral Ferrous carbonate Ferrous carbonate Ferrous chloride Ferrous compounds Ferrous compounds Ferrous compounds Ferrous compounds Ferrous concrete Ferrous concrete Ferrous ferric oxide Ferrous ferric oxide Ferrous fumarate Ferrous fumarate Ferrous fumarate ferrous fumarate/ferrous gluconate/ferrous sulfate Ferrous gluconate Ferrous gluconate | |||||||
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