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    Tungsten

Characteristics of Tungsten

  • Tungsten has the highest melting point of all metals. The modulus of elasticity is also very high. The mechanical properties are comparable to those of molybdenum but W has even higher values.
  • Tungsten has the lowest coefficient of thermal expansion of 4.5 microns/(m-K) (at 25 °C of all metals).
  • Tungsten has good corrosion resistance to acids and liquid metals
  • Due to the high density, tungsten has very good shielding properties against X-rays and gamma-steels
Symbol W
Melting point 3.422 °C
Density 19,25g/cm³ (25°C)
Melting temperature 3422°C
Modulus of elasticity (E-modul) 405GPa
Poisson Number 0,28

Application of Tungsten

  • Lighting fixtures as filaments, we are no longer used today
  • Application for components for high-temperature furnaces and high-temperature alloys
  • As X-ray emission targets Radiation protection for various radiations
  • Military application for projectiles for penetration of armor
  • Tungsten carbide (WC) or TC is very hard material and can be used for cutting plates for tools for metal and woodworking
  • Electrodes for TIG welding

Available W and W alloys

DESCRIBTION SPEC SP. WEIGHT
g/cm³
TENSILE STRENGTH
MPa
YIELD STRENGTH
MPa
1 Pure Tungsten 99,95/CP 19,3 980 750
2 WNiCu (W906Ni4Cu)alloy Class 1 17,0 650 520
3 WNiFe (W92.5Ni5.25Fe2.25) Class 2 17,5 760 520
4 WNiCu (W95Ni3.5Cu1.5) Class 3 18,0 650 520
5 MAX AD 600MM MAX WD 125MM Class 4 18,5 690 520

Tungsten semifinished products

PRODUCT DIMENSIONS STANDARD REMARKS
W bars Dia2,0-320mm x 600mm ASTM B777
Tungsten Wire for electron device + lamps Dia 0,025-3,5mm ASTM F288
ASTM B288
Tungsten Foil 0,05mm-0,10mm ASTM B760
Tungsten Sheets 0,15mm-50mm ASTM B760
Tungsten tubes OD0,5-150mm x WT0,07-13mm
Tungsten Fasteners M3-M20 ASTM B777
AgW electrical contacts ASTM B702
ASTM B631

Tungsten finished products

  • Tungsten crucibles
  • Tungesten boats
  • Tungsten targets
  • Tungsten springs
  • W-Elektroden, dotiert: WT (Th02), WL (La2O3), WC (CeO2), WZ (ZrO2), WY (Y2O3), WX

Pipe profiles

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    Round
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    Oval
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    Rectangle
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    Finned Tubes
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