Ferrotungsten

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Ferrotungsten
Identifiers
ECHA InfoCard 100.108.319 Edit this at Wikidata
Properties
Appearance white solid
Melting point 1,650 °C (3,000 °F; 1,920 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ferrotungsten (FeW) is a ferroalloy, consisting of iron and tungsten.[2] The metal usually consists of 75%-82% or 70%-75% tungsten.

Applications[edit]

Because of its high melting point, ferrotungsten is a robust alloy with applications in aerospace[3] and making of tungsten-containing steel. Tungsten's unique electrical capabilities has made ferrotungsten useful electron microscopes and in IC chips.

Production[edit]

Discovered in 1874, World ferrotungsten production today is dominated by China, which in 2008 exported 4,835 t (gross weight) of the alloy. Ferrotungsten is relatively expensive, with the prices around $31–44 per kilogram of contained tungsten.[4] During the years with war, over 21,000,000 lb of Ferro-tungsten and other ferroalloys were shipped to Russia on lend-lease.[3] The cost was more than $12,000,000. This was Russia's biggest strength during the wars.

Ferrotungsten comes from rich ore raw materials primarily of wolframite or scheelite.

References[edit]

  1. ^ MSDS 12ga Star Flash Aerial Diversion
  2. ^ Ferro Tungsten American Elements; accessed 1 march 2019
  3. ^ a b Russia's Growing Air Power Popular Science Jul 1947, page 91: accessed 1 March 2019
  4. ^ Lisa A. Corathers et al. Ferroalloys, USGS 2008 Minerals Yearbook