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Hafnium Wire

Hafnium Wire

Hafnium wire is a thin, high-purity wire made from the chemical element hafnium. Hafnium is a ductile, silver-grey metal that is similar in properties to zirconium, and is often found in minerals such as zirconium silicate.

Hafnium wire is commonly used in a variety of applications, including nuclear reactors, aerospace and defense industries, and chemical processing equipment. Its high melting point, corrosion resistance, and low neutron absorption make it an ideal material for use in nuclear reactors, where it is used as a control rod material.

In aerospace and defense industries, hafnium wire is used as a coating material for rocket and missile components due to its ability to withstand high temperatures and its resistance to corrosion. It is also used in electrical and electronic applications, such as cathodes for plasma cutting torches and vacuum tubes.

Hafnium Wire Properties (Theoretical)

Molecular Weight 178.49
Appearance Silver
Melting Point 2227 °C
Boiling Point 4602 °C
Density 13.31 g/cm3
Solubility in H2O N/A
Electrical Resistivity 35.1 microhm-cm @ 25 °C
Electronegativity 1.3 Paulings
Heat of Fusion 6.0 Cal/gm mole
Heat of Vaporization 155 K-Cal/gm atom at 4602 °C
Poisson's Ratio 0.37
Specific Heat 0.035 Cal/g/K @ 25 °C
Tensile Strength N/A
Thermal Conductivity 0.230 W/cm/K @ 298.2 K
Thermal Expansion (25 °C) 5.9 µm·m-1·K-1
Vickers Hardness 1760 MPa
Young's Modulus 78 GPa


Diameter 0.5-6mm, customized
Shape Coil wire, straight wire
Purity Hf+Zr≥99.95%, Zr≤2.5%
Standard AWS A5.24/A5.24M, ASME SFA-5.24/SFA-5.24M
CAS 7440-58-6

Hafnium Wire Types

  • Hafnium wire for plasma cutting
  • Hafnium wire for electrode tip of cutting machine
  • Hafnium wire for evaporation

Hafnium Wire Form


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