from The Century Dictionary.
- noun In metallurgy, an alloy of iron and tungsten, rich in the latter metal, used in the manufacture of tungsten steel for cutting-tools.
Sorry, no etymologies found.
In so far as actual domestic consumption is concerned there has been a return to something like pre-war conditions, as the only known new use to which tungsten may be put -- the manufacture of die steel -- does not involve the use of any large amount of ferrotungsten.
Importation from the Orient and the west coast of South America should continue in reduced amounts, depending upon the ability of domestic manufacturers to obtain and hold foreign markets for ferrotungsten and high speed tool steel.
Germany through its smelting interests controlled the foreign tungsten situation prior to the war; two-thirds of its excess output of ferrotungsten was consumed by England and the balance principally by the
It is added either as the powdered metal or in the form of ferrotungsten, an alloy containing 70 to 90 per cent of tungsten.
Considerable amounts of ferrotungsten were exported to the Allies.
Germany, from Portugal and Spain, and from England, both of concentrates and of ferrotungsten.
China also raised the export tax on ferrochromium, ferronickel, ferromolybdenum and ferrotungsten to 20 percent in early 2008, he said.