Boron Nitride Tube, BN Tube-Heeger Materials Inc View larger

Boron Nitride Tube, BN Tube

New product

Boron Nitride Tube, BN Tube, is produced by high-temperature vacuum hot-pressing sintering of powdered hexagonal boron nitride. Heeger Materials provides high-quality Boron Nitride Tubes and other boron nitride products at competitive prices, with customized options to meet specific requirements.

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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

Purity99% - 99.999%
Sizesmall than 12″ diameter x 12″ length, or customzied

More info

Boron nitride tubes serve as insulating sleeves. Boron Nitride (BN), including Hexagonal Boron Nitride (H-BN) and hot-pressed boron nitride, excel as self-lubricating ceramics, enduring heat and maintaining lubrication in high vacuum. H-BN mimics graphite mechanically but offers superior electrical resistance. HM's Boron Nitride Tubes (BN Tubes) are made from hot-pressed blanks.

Boron Nitride (BN) TubesBoron Nitride (BN) Tube Drawing

Boron Nitride Tube Advantages

  • Low wettability to molten metal
  • Low dielectric constant
  • Relatively high dielectric strength
  • Relatively high thermal conductivity with low thermal expansion
  • Relatively high thermal shock resistance
  • Extremely high working temperature with proper inert gas protection (>3000C has been recorded).
  • Chemical Vapor Deposition (CVD)

Boron Nitride Tube Available Materials




Hot pressed at high temperature (1900).
 Excellent corrosion resistance and thermal conductivity. Limited wear resistance
 Self-bonded and high purity(>99%)


General-purpose material
 Bonded by boric oxide


Calcium borate bonded boron nitride
 Enhanced moisture resistance


BN 60%, SiO2 40%


BN 40%, SiO2 60%


BN-45%, Zr2O3 45%

Boron Nitride Tube Applications

Boron Nitride ceramic from Heeger Materials can endure heat within a high vacuum environment, plus it's chemically inert — excellent corrosion resistance and electric resistance. Therefore, Boron Nitride ceramic product is a perfect choice for a wide selection of industries, such as:

  • Electric insulators in vacuum system
  • Boron Nitride ceramic components for PVD, MOCVD, and MBE systems.
  • Nozzles for the nonferrous metals metallurgy industry
  • Spacers for glass melting
  • Insulators for high-temperature furnace

Hexagonal Boron Nitride Materials Types

  • Pyrolytic boron nitride PBN: 99.99% boron nitride
  • High purity boron nitride HPBN: >98.5% boron nitride + boron oxide
  • Calcium Borate Boron Nitride CABN: >97.5% Boron Nitride + Calcium Borate
  • Aluminum Nitride Boron Nitride ALBN: Boron Nitride + Aluminum Nitride + Boron Aluminum Oxide
  • Zirconia Boron Nitride ZRBN: Boron Nitride + Zirconia + Boron Oxide
  • Zirconium Aluminum Boron Nitride ZABN: Boron Nitride + Zirconia + Aluminum Nitride + Aluminum Boron Oxide
  • Silicon carbide boron nitride SCBN: boron nitride + silicon carbide + boron silicon oxide

Boron Nitride Tube Targeted Market

  • High-temperature furnace manufacturing
  • Ceramic manufacturing semiconductor
  • PVD coating
  • Microwave etc.

Boron Nitride Tube Packing

Boron Nitride (BN) Tubes are carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Boron Nitride (BN) Tube Packing

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