Tungsten

Tungsten and tungsten alloys exhibit excellent thermal and electrical conductivity, high density, resistance to thermal shock and corrosion, and a low vapor pressure at high temperatures.  These properties make tungsten an ideal material for use in a variety of demanding applications including industrial furnaces, semiconductor manufacturing equipment, aerospace, and in many other applications.

Tungsten Alloys

In addition to the pure metal, Elmet provides these tungsten-based alloys to achieve specific performance characteristics:

  • Tungsten – Potassium (WK)
    • Potassium doped product is targeted for use where high temperature non-sag wire properties are required in the lighting and electronic industries. In addition, the doped product in the rod form exhibits superior strength and machinability in other industrial applications.
  • Tungsten Lanthana (WLa)
    • Lanthanated W is targeted for applications requiring high temperature performance with improved creep resistance, increased strength, and higher recrystallization temperature.

Tungsten Facts:
  • Symbol: W
  • Category: Transition Metal, Group VI
  • Atomic Number: 74
  • Density: 19.25 g / cm3
  • Melting Point: 3420 °C, highest metal, 2nd highest of elements
  • Discovered: 1781
  • Low vapor pressure
  • High electrical resistance
  • Low coefficient of thermal expansion (CTE)
  • Good thermal conductivity
  • High density
  • Strong corrosion resistance
  • High elastic modulus

Tungsten MSDS

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