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Mosten Alloy Co., Ltd.
Add: No.88 Jizhong Road, Shanghai,China    201609
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Email: info@mostenalloy.com
Support - Tungsten Tec Info
Tungsten was discovered in 1781 and it belongs to refractory metals. Tungsten and its alloys are widely used for its properties of high melting point, density, strength in high temperature and hardness . It developed rapidly in industrial production and it becomes an important and irreplaceable strategic raw material.

Physical Properties of Tungsten

  • Atomic number
  • 74
  • Stable isotope and content of W %
  • 180 (0.14); 182 (26.41); 183 (14.4)
    184 (30.64); 186 (28.41)
  • Relative atomic mass
  • 183.86
  • Debye temperature/K
  • 400
  • Density/g.cmˉ3
  • α-W:19.246~19.256;β-W:18.9
  • Melting point/K
  • 3 683±20
  • Boiling point/K
  • 5 973±200
  • Critical temperature/K
  • 23 000
  • Latent heat of fusion/KJ·molˉ1
  • 40.13±6.67
  • Heat of sublimation(25°C)/ KJ·molˉ1
  • 847.8
  • Linear expansivity (298~2 273 K)
    Bar made by powder metallurgy
    Sheet made by powder metallurgy
    Sheet made by electric arc melting
  • -8.69x10ˉ3+3.83 x 10ˉ4T + 7.92x10ˉ8T2
    -4.58x10ˉ3+3.65 x 10ˉ4T + 9.81x10ˉ8T2
    -6.76x10ˉ3+3.91 x 10ˉ4T + 8.98x10ˉ8T2
  • Electron work function/eV
  • 4.5

Mechanical Properties of Tungsten

  • Property
  • Figure
  • Bulk modulus/Pa
  • 3.108x1011-1.759x107T+0.344x103T2
  • Shear modulus/Pa
  • 1.603x1011-1.456 x 107T+3.28 x103T2
  • Modulus of Elasticity/Gpa
  • 390
  • Vickers hardness HV
  • Slight deformation>1.0mm sheet, wire
  • 3000~5000
  • Big deformation<1.0mm sheet, wire
  • 5000~7000
  • Recrystallization
  • 3 600
  • Tensile strength/MPa
  • Slight deformation>1.0mm sheet, wire
  • 980~1 750
  • Big deformation < 1.0mm sheet, wire
  • 1 470~1 960
  • Recrystallization
  • 980~1 190