Atomic Number

►22

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Atomic Volume

►10.6W/D

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Atomic Weight

►47.9

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Boiling Point

►3260 °C/5900 °F

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Coefficient of Friction

►0.8 at 40 m/min (125 ft/min) /

   0.68 at 300 m/min (1000 ft/min)

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Coefficient of Thermal Expansion

►8.64 x 10-6°C

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Color

►Dark Grey

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Covalent Radius

►1.32 A

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Density

►4.51 gm/cm3   (0.163 lb/in3)

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Electrical Conductivity

►3% IACS (copper 100%)

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Electrical Resistivity

►47.8 µohm-cm

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Electronegativity

►1.5 Pauling's

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First Ionization Energy

►158 k-cal/g-mole

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Heat of Fusion

►440 kJ/kg (est.)

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Heat of Vaporization

►9.83MJ/kg

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Machinability Rating

►40

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Magnetic Susceptibility

►1.25x10-6 / 3.17 emu/g

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Melting Point

►1668°C ± 10°C (3035°F ± 18°F)

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Modulus of Elasticity

►14.9 x 106psi

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Poisson's Ratio

►0.41

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Solidus/Liquidus Temperature

►1725°C/ (3137°F)

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Specific Gravity

►4.5

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Specific Heat (at 25°C)

►0.518 J/kg °K,  (0.124 BTU/lb °F)

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Specific Resistance

►554 µohm-cm

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Tensile Strength

►35 ksi min

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Thermal Neutron Absorption Cross Section

►5.6 barnes/atom

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Thermo-Conductivity

►9.0 BTU/hr ft2°F

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Young's Modulus of Elasticity

►116 x 106 lbf/in2, 102.7 GPA