Boron Nitride Tube
- Custom and standard options available.
- Fast lead times guaranteed.
- High performance at a competitive price.
High-purity Boron Nitride Tube offers thermal stability to 850°C (air), electrical insulation, and corrosion resistance. Chemically inert and non-wetting to molten metals. Easy to machine. Ideal for thermocouple protection, furnace components, and semiconductor processing.NexusX Advanced Materials, as a premier manufacturer and supplier of high-quality. Boron Nitride (BN) products, focuses on producing high-precision aluminum nitride silicon structural compenents through advanced technologies for diverse application fields.
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Boron Nitride Tube Data Sheet
Material Grade: | Grade A, Grade AX05, Grade HP, M/M26, ZSBN, HMBN 1000, HMBN2000, HMBN3000, HMBN4000, HMBN5000, etc. |
Color: | White |
Melting Point: | 2937 ℃ |
Density | 1.9-2.2 g/cm3 |
Dielectric Constant: | 4.3 |
Boron Nitride Tube Descriptions
Precision-engineered from high-purity hexagonal boron nitride (h-BN), our Boron Nitride tubes deliver a unique combination of high thermal conductivity, excellent electrical insulation, and outstanding thermal shock resistance. They maintain structural integrity up to 850°C in air and significantly higher in inert or vacuum environments. Chemically inert and non-wetting to most molten metals, slags, and glasses, these tubes resist corrosion and prevent contamination in demanding processes. Easy to machine into custom lengths and diameters, Boron Nitride tubes are ideal for thermocouple protection sheaths, high-temperature furnace components, semiconductor manufacturing, molten metal handling, and vacuum system feedthroughs.
Boron Nitride Tube Advantages
- High-Temperature Stability – Operates reliably up to 850°C in air and over 2000°C in inert atmospheres or vacuum.
- Excellent Electrical Insulation – Provides superior dielectric strength, ideal for high-voltage and high-frequency applications.
- High Thermal Conductivity – Efficiently dissipates heat, preventing localized overheating.
- Exceptional Thermal Shock Resistance – Withstands rapid temperature changes without cracking.
- Chemical Inertness – Resists most acids, alkalis, and corrosive environments.
- Non-Wetting to Molten Metals – Does not react with or stick to molten aluminum, zinc, copper, and glasses.
- Easy Machinability – Can be precisely cut, drilled, or threaded using standard tools.
- Low Thermal Expansion – Maintains dimensional stability under extreme temperature fluctuations.
Boron Nitride Tube Applications
- Thermocouple Protection Sheaths – Shields thermocouples in high-temperature or corrosive environments.
- High-Temperature Furnace Components – Used as feedthroughs, supports, and insulation tubes in furnaces.
- Semiconductor Processing – Plasma etching chambers, CVD systems, and ion implantation equipment.
- Molten Metal Handling – Nozzles, injection tubes, and guides for aluminum, zinc, and other non-ferrous metals.
- Vacuum System Feedthroughs – Electrical and thermal feedthroughs in high-vacuum chambers.
- Microwave and RF Components – Dielectric tubes for radar, communication, and plasma generation systems.
- Heat Exchanger Tubes – In corrosive or high-temperature fluid handling applications.
- Laboratory Thermal Analysis – Sample tubes for TGA/DSC under extreme temperatures.
- Laser Systems – Protective tubes and heat management components for high-power lasers.
Boron Nitride Ring Packaging
Boron Nitride products are typically packaged in vacuum-sealed bags to prevent moisture or contamination, and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.
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- SAFETY DATA SHEET (SDS) -Boron Nitride Tube
FAQ
What is a Boron Nitride Tube?
A Boron Nitride Tube is a ceramic tube made from high-purity hexagonal boron nitride (h-BN), offering high-temperature resistance, electrical insulation, and chemical inertness.
What is the maximum temperature a Boron Nitride Tube can withstand?
A Boron Nitride Tube can withstand up to 850°C in air and over 2000°C in inert atmospheres or vacuum.
Does a Boron Nitride Tube react with molten aluminum?
No, a Boron Nitride Tube does not react with or wet molten aluminum, making it ideal for handling non-ferrous metals.
Can a Boron Nitride Tube be used in vacuum environments?
Yes, a Boron Nitride Tube is suitable for vacuum environments due to its low outgassing and high thermal stability.
What sizes are available for a Boron Nitride Tube?
Boron Nitride Tubes are commonly available from 2mm to 100mm outer diameter and up to 300mm in length, with custom sizes available.
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