Spherical Niobium (Nb) Powder


New product

Spherical Niobium (Nb) powder is made by radio frequency plasma spheroidization of ordinary niobium powder, which has the characteristics of high sphericity, good fluidity, high purity, large loose density, full density inside particles, no hollow powder, etc. Heeger Materials can provide the best quality and customized Spherical Nb Powder at a competitive price. 

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Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.

Data sheet

ShapeSpherical / Ball Powder
Particle Size5-25μm, 15-45μm, 15-53μm, 45-75μm, 45-105μm, 75-150μm, customized
Molecular FormulaNb

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Spherical Niobium (Nbpowder is the perfect thermal protection material and structural material for aerospace engines. Nb, as the lightest refractory metal, has the characteristics of high melting point, high-temperature strength, high specific strength, and no radioactivity.

Spherical Niobium (Nb) Powder

Spherical Niobium (Nb) Powder Characteristics

  • High purity (99.9%)
  • Low oxygen
  • High sphericity (98%)
  • Smooth surface
  • No satellite spheres
  • Uniform particle size distribution
  • Excellent flow properties 
  • High bulk density and tap density

Spherical Niobium (Nb) Powder Applicable processes

  • Laser/electron beam additive manufacturing (SLM/EBM, 3D printing)
  • laser direct deposition (DLD)
  • powder hot isostatic pressing (HIP)
  • metal injection molding (MIM)
  • powder metallurgy (PM)
  • laser cladding ( LC)

Spherical Niobium (Nb) Powder Application

  • Used in thermal protection material and structural material for aerospace engines.
  • Used in palladium materials, vacuum coating, thermal spraying, coating, cold spraying, and other fields.

Spherical Niobium (Nb) Powder Chemical Composition

Chemical Composition - by ICP-AES










Value (%)









Gas Impurities





Value (%)

</= 0.01

</= 0.002

</= 0.06

</= 0.003

Spherical Niobium (Nb) Powder Physical Properties

Density (g/cm3)

Hall Flow Rate (s/50g)

Apparent Density

Tap Density




</= 15.0

Particle Size Description

  • 5-25μm (D10=5~10μm, D50=15~20μm, D90=20~25μm)
  • 15-45μm (D10=15~20μm,D50=25~30μm,D90=35~40μm)
  • 15-53μm (D10=15~20μm,D50=25~35μm,D90=45~50μm)
  • 45-75μm (D10=45~55μm,D50=55~65μm,D90=70~75μm)
  • 45-105μm (D10=50~60μm,D50=75~85μm,D90=95~105μm)
  • 75-150μm (D10=80~90μm,D50=110~125μm,D90=135~150μm)

PSD-Spherical Niobium (Nb) Powder

Spherical Niobium (Nb) Powder SEM

Spherical Niobium (Nb) Powder SEM

Spherical Niobium (Nb) Powder Packaging

Spherical Niobium (Nb) Powder should be stored in a sealed container in a dry and cool place, and should not be exposed to air for an extended period. HM offers vacuum-sealed packaging including 100g/bag, 500g/bag, 1kg/bag, and 25kg/drum, or customized packaging as per specific requirements.


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