Hafnium Starter Source

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.


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


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99.9% Purity (Ex Zr 3% Max)

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