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Formula: Hf
Form: Disk
Material: Hafnium
CAS Number: 7440-58-6
Commodity: Metals
Purity: 97%
Hafnium disks come in a comprehensive range of 752 variations. Hafnium is a lustrous transition metal with excellent corrosion resistance and high-temperature strength, making it useful for applications like control rods and thermocouples in nuclear reactors. With it having corrosion resistance exceeding that of titanium and zirconium, these Hafnium disks have a rich potential across science and industry. Our wide range allows selection of dimensions like thickness and diameter to suit different experimental, prototyping and production needs.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Disk
Thickness >0.05mm ±10%
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 72
Crystal structure Hexagonal close packed
Electronic structure Xe 4f¹⁴ 5d² 6s²
Valences shown 4
Atomic weight( amu ) 178.49
Thermal neutron absorption cross-section( Barns ) 103
Photo-electric work function( eV ) 3.9
Natural isotope distribution( Mass No./% ) 179/ 13.8
Natural isotope distribution( Mass No./% ) 176/ 5.2
Natural isotope distribution( Mass No./% ) 180/ 35.2
Natural isotope distribution( Mass No./% ) 174/ 0.2
Natural isotope distribution( Mass No./% ) 177/ 18.5
Natural isotope distribution( Mass No./% ) 178/ 27.1
Atomic radius - Goldschmidt( nm ) 0.159
Ionisation potential( No./eV ) 3/ 23.3
Ionisation potential( No./eV ) 1/ 7.0
Ionisation potential( No./eV ) 2/ 14.9
Ionisation potential( No./eV ) 4/ 33.3
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.26
Poisson's ratio 0.26
Bulk modulus( GPa ) 109
Bulk modulus( GPa ) 109
Tensile modulus( GPa ) 141
Tensile modulus( GPa ) 141
Hardness - Vickers( kgf mm⁻² ) 150-180
Tensile strength( MPa ) 445
Tensile strength( MPa ) 745
Yield strength( MPa ) 365
Yield strength( MPa ) 240
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 32.2@20@20°C
Superconductivity critical temperature( K ) 0.128
Temperature coefficient( K⁻¹ ) 0.0044@0-100°C
Physical Properties
Element Value
Boiling point( C ) 4602
Density( gcm⁻³ ) 13.1@20°C
Thermal Properties
Element Value
Melting point( C ) 2227
Latent heat of evaporation( J g⁻¹ ) 3700
Latent heat of fusion( J g⁻¹ ) 122
Specific heat( J K⁻¹ kg⁻¹ ) 146@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 23@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 6@0-100°C

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