FORGED TUNGSTEN MOLYBDENUM

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Commom Parameter of Molybdenum Tungsten Tatanlum Niobium

Molybdenum

Tungsten

Tatanlum

Niobium

Chromium

Hardness(20℃)

Stress-relief annealed:>

220(HV10)

recrystallized>160 – 180[HV10]

stress-relief annealed:>460(HV30)

recrystallized>360(HV30)

deformed:120 – 220 [HV10]

recrystallized:80 – 125[HV10]

deformed:110 – 180 [HV10] recrystallized:60 – 110[HV10]

180 – 250 [HV10]

Modulus of elasticity(20℃)

320 [GPa]

405 [GPa]

186 [GPa]

104 [GPa]

294 [GPa]

Coefficient of linear thermal expansion(20℃)

5.2 · 10-6

[m/(m·K)]

4.4 · 10-6

[m/(m·K)]

6.4 · 10-6

[m/(m·K)]

7.1 · 10-6

[m/(m·K)]

6.2 · 10-6

[m/(m·K)]

Thermal conductivity(20℃)

142 [W/(m ·K)]

164

[W/(m·K)]

57.5

 [W/(m·K)]

53.7

 [W/(m·K)]

93.7

 [W/(m·K)]

Specific heat(20℃)

0.25

 [J/(g·K)]

0.13

[J/(g·K)]

0.14 [J/(g·K)]

0.27

 [J/(g·K)]

0,45

 [J/(g·K)]

Electrical conductivity(20℃)

17.9 · 106

[1/(Ω·m)]

18.2 · 106

[1/(Ω·m)]

8 · 106 [1/(Ω·m)]

7.1 · 106 [1/(Ω·m)]

7.9 · 106

[1/(Ω·m)]

Specific electrical resistance(20℃)

0,056

[(Ω·mm2)/m]

0.055

[(Ω·mm2)/m]

0.125

[(Ω·mm2)/]

0.141

[(Ω·mm2)/m]

0.127

[(Ω·mm2)/m]

Electron work function

4,39 [eV]

4.54 [eV]

4.3 [eV]

4.3 [eV]

4,5 [eV]

Recrystallization

temperature

1100℃

1350℃

900-1450℃

850 – 1,300 °C


Post time: Sep-29-2019

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