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Moly Tungsten Alloy Physical Properties

Molybdenum tungsten alloy Physical Properties(composition) As Follows:

Tungsten

Project

Molybdenum

Atomic

183.85

Atomic weight

95.95

BCC

Crystal structure

Body-centered cubic

3410°C

2622°C

5660°C

Boiling Point

4804°C

19.3 g/cm³

Density

10.22g/cm³

190.3 kJ/kg

Heat of fusion

289.7 kJ/kg

0.14kJ/(kg·K)

Specific heat （20-100°C）

0.26kJ/(kg·K)

20°C	5.4×10^-6Ω·cm
500°C	1.8×10^-5Ω·cm
1000°C	5.1×10^-5Ω·cm
2000°C	8.3×10^-5Ω·cm
3000°C	1.1×10⁴Ω·cm

Resistivity

20°C	5.6×10^-6Ω·cm
500°C	2.4×10^-5Ω·cm
1000°C	3.6×10^-5Ω·cm
1500°C	5.3×10^-5Ω·cm
2500°C	7.8×10^-5Ω·cm

4.6×10^-3 /K

Temperature Coefficient of Resistance

4.7×10^-3 /K

20°C	167.5 W(m·K)
100°C	159.2 W(m·K)
500°C	121.5 W(m·K)
1000°C	111.0 W(m·K)
2000°C	93.0 W(m·K)

Thermal Conductivity

20°C	146.5 W(m·K)
100°C	138.2 W(m·K)
500°C	121.5 W(m·K)
1000°C	98.8 W(m·K)
1500°C	83.8 W(m·K)

100°C	4.5×10^-6 /K
1000°C	4.6×10^-6 /K
2000°C	5.4×10^-6 /K
3000°C	6.6×10^-6 /K

Coefficient of linear expansion

100°C	5.2×10^-6 /K
500°C	5.7×10^-6 /K
1000°C	5.8×10^-6 /K
1500°C	6.5×10^-6 /K

2000°C	3.89×10^-9 Pa
2500°C	2.68×10^-5 Pa
3000°C	1.24×10^-2 Pa

Vapor pressure

1600°C	7.09×10^-8 Pa
2000°C	5.58×10^-4 Pa
2500°C	1.33 Pa

4.5 eV

Electronic work function

4.4 eV

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