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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.



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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.
 
 
 
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