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High Purity Hafnium Crystal Bar

High Purity Hafnium Crystal Bar

A high purity hafnium crystal bar is a solid, cylindrical piece of hafnium metal that has been refined to a very high degree of purity. Hafnium is a lustrous, silver-gray metal with a high melting point and good corrosion resistance, which makes it useful in a variety of applications.

The resulting crystal bar is highly pure, with a purity level of 99.95% or higher. This level of purity is necessary for many high-tech applications, such as in the manufacture of advanced semiconductor devices, nuclear reactor control rods, and other high-performance materials.

High purity hafnium crystal bars can be obtained in a range of sizes and shapes, depending on the intended use. They are typically cut into smaller pieces, such as rods or discs, for use in specific applications.

Overall, the high purity hafnium crystal bar is a valuable material that is prized for its unique combination of properties, including high melting point, good corrosion resistance, and low neutron absorption. Its high purity makes it a critical component in many high-tech applications, from advanced electronics to nuclear power generation.

Hafnium Crystal Bars Properties (Theoretical)

Molecular Weight 178.49
Appearance Silver
Melting Point 2227°C
Boiling Point 4602°C
Density 13.31 gm/cc
Solubility in H2O N/A
Electrical Resistivity 35.1 microhm-cm @ 25°C
Electronegativity 1.3 Paulings
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


Purity Hf+Zr≥99.99%, Zr≤0.5%
Size 20-40mm, customized
CAS 7440-58-6

Hafnium Crystal Bar Properties

  • Hafnium has good corrosion resistance, is not easily corroded by general acid-base aqueous solutions, and is easily dissolved in hydrofluoric acid to form fluorine complexes.
  • At high temperatures, hafnium can also be directly combined with oxygen, nitrogen, and other gases to form oxides and nitrides.
  • Hafnium is relatively stable in the air, and powdered hafnium is very easy to burn.
  • Hafnium has a large thermal neutron capture cross-section, and hafnium has outstanding nuclear energy. It is an indispensable rare material for the development of the atomic energy industry.

Hafnium Crystal Bar Applications

High-purity hafnium crystalline rods are used in nickel-based high-temperature alloy additives, CVD evaporation coating, and other industries. Also used in the field of atomic energy, or in military applications.

  • It is mainly used to produce hafnium-based alloy materials. Because hafnium has fast heat absorption and heat release properties (1 time faster than zirconium and titanium), it can be used as structural materials for jet engines and missiles.
  • The refractory properties of hafnium allow it to be used as a blade for turbojet aircraft and in freezing-point pressure jet engines. It can also be used to make valves, nozzles, and other high-temperature parts.


We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.

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