Hafnium Disc

Hafnium is a silvery metal that can easily absorb neutrons and is very resistant to corrosion. Hafnium is a common metal found in many industries including the nuclear, welding, and electrical industries.

View more on hafnium's Safety Data Sheet.

Details

General Properties

Symbol:  Hf
Atomic Number:  72
Atomic Weight:  178.49
Density:  13.31 gm/cc
Melting Point:  2227 oC
Boiling Point:  4602 oC
Thermal Conductivity:  0.230 W/cm/K @ 298.2 K
Electrical Resistivity:  35.1 microhm-cm @ 25 oC
Electronegativity:  1.3 Paulings
Specific Heat:  0.035 Cal/g/K @ 25 oC
Heat of Vaporization:  155 K-Cal/gm atom at 4602 oC
Heat of Fusion:  6.0 Cal/gm mole
Thermal Neutron Cross Section:  115 Barns

Specifications

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99.9% Purity Ex Zr 3% Max

 Thickness  Diameter
 .001″ to .0035″  .25″ to 4″ maximum
 .004″ to .020″  .25″ to 6″ maximum
 .022″ to .031″  .5″ to 6″ maximum
 .032″ to .125″  1″ to 6″ maximum
 .126″ to .200″  1″ to 6″ maximum
 .210″ to .250″  1″ to 8″ maximum

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