What it is used for
Examples of Tungsten
By "cementing" very hard tungsten monocarbide
Hard Metals
Machining, coating,
Powder metallurgy, defense
Improved longevity
High Speed Steel
Drill bits, taps, milling cutters,
Gear milling cutters, saw blades
Emitter coil
Electronics
X-ray tubes,
circuits
What makes it special
About Tungsten
Origin
Tungsten is mined mainly in China, Vietnam, Russia, Portugal, Great Britain and Bolivia. China reportedly holds about 75% of the world's tungsten supply and is increasing its share of the world market.
Processing
Tungsten is mainly extracted from the minerals scheelite and wolframite. Ferberite and huebnerite are other tungsten-containing minerals. The density is comparable to that of uranium and gold.
Properties
Tungsten has a high plasticity, a low rate of evaporation, a high melting point and a strong electron emission ability.
It has the highest melting point of all the elements and melts at 3,422 ° C.