Tungsten

:This article is about the chemical element. "Tungsten" may also refer to the Tungsten Handheld PDA or to the Tungsten pickups.

Notable characteristics

Pure tungsten is steel-gray to tin-white and is a hard metal. Tungsten can be cut with a hacksaw when it is very pure (it is brittle and hard to work when impure) and is otherwise worked by forging, drawing, or extruding. This element has the highest melting point (3422 °C) (6192 °F) , lowest vapor pressure and the highest tensile strength at temperatures above 1650 °C (3000 °F) of all metals. Its corrosion resistance is excellent and it can only be attacked slightly by most mineral acids. Tungsten metal forms a protective oxide when exposed to air but can be oxidized at high temperature. When alloyed in small quantities with steel, it greatly increases its hardness.

Related Topics:
Hacksaw - Melting point - C - F - Vapor pressure - Tensile strength - Acid - Oxide - Steel

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