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Niobium Powder, CAS No 7440-03-1

Niobium Powder, CAS No 7440-03-1

Niobium powder is a fine, gray metallic powder composed of small particles of niobium. It is commonly used as a raw material for producing various niobium-based products, such as wires, rods, sheets, and tubes. Niobium powder is also used in the production of superalloys, which are used in high-temperature applications, such as aerospace and power generation. Additionally, niobium powder has applications in the electronics industry, where it is used to make capacitors, superconductors, and other electronic components. Niobium powder can be produced through a variety of methods, including chemical reduction, thermal decomposition, and electrolysis.

Niobium Powder Properties (Theoretical)

Molecular Weight 92.9
Appearance Silvery
Melting Point 2468 °C
Boiling Point 4742 °C
Density 8.57 g/cm3
Solubility in H2O N/A
Electrical Resistivity 12.5 microhm-cm @ 0 °C
Electronegativity 1.6 Paulings
Heat of Fusion 6.5 Cal/gm mole
Heat of Vaporization N/A
Poisson's Ratio 0.4
Specific Heat 0.064 Cal/g/K @ 25 °C
Tensile Strength N/A
Thermal Conductivity 0.537 W/cm/K @ 298.2 K
Thermal Expansion 7.3 µm/(m·K)
Vickers Hardness 1320 MPa
Young's Modulus 105 GPa

Niobium Powder Specification

  • Purity: >99.9%
  • Loose packing density: 2.5-3.5 (g/cm3)
  • Particle size: -100 mesh, -200 mesh, -300 mesh (can be customized for special sizes)

Niobium Powder Applications

High-purity and high-quality niobium powder are used as an additive to improve the corrosion resistance of turbine blades in the aerospace and energy industries.

  • Capacitors
  • Sputtering targets
  • Medical applications
  • Calendered products
  • Wires
  • Thermal Spray


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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