• Product Details

Boron Nitride Properties

Boron nitride has high heat capacity, outstanding thermal conductivity, easy machinability, lubricity, low dielectric constant, and superior dielectric strength.

To make solid shapes, hBN powders and binders are hot-pressed in billets up to 490mm x 490mm x 410mm at pressures up to 2000 psi and temperatures up to 2000°C. This process forms a material that is dense and easily machined and ready to use. It is available in virtually any custom shape that can be machined and has unique characteristics and physical properties which make it valuable for solving tough problems in a wide range of industrial applications.

Excellent thermal shock resistance

High electrical resistivity – excluding aerosols, paints, and ZSBN

Low density

High thermal conductivity

Anisotropic (thermal conductance is different in different planes relative to pressing direction)

Corrosion resistant

Good chemical inertness

High temperature material


High dielectric breakdown strength, >40 KV/mm

Low dielectric constant, k=4

Excellent machinability

Some of the most common boron nitride applications we complete include:

Furnace fixture supports and components

Melting crucibles for glass and metals

Plasma and welding tip insulators

High temp thermal complete systems

Molten metal carrier pipes

Nuclear reactor shields and linings

Semiconductor wafers

Ceramic bushings

Heat radiation shielding

Ceramic washers

Transistor heat sinks

Sputtering targets

Microwave tubes

Ceramic coating and paints

Pump nozzles


Refractory molds for glass forming and titanium forming

Ceramic electrical insulators


Thermocouple protection sheaths

                                                                                                                                           BN TECHNICAL DATASHEET
BN Purity%>99.5
Flexsural strengthMpa22
Thermal conductivityW/mk50-70
Max working tempIn air850C
In inert

Company information

Liling Xing Tai Long Special Ceramic Co., Ltd was established in 1997, specializing in research and development, manufacturing high pure alumina ceramic product, BeO ceramic product, zirconia ceramic product, silicon carbide ceramic product, BN ceramic product and graphite ceramic product. Main as: alumina/zirconia tube, alumina/zirconia crucible, clay fire assay crucible, alumina/zirconia disc, alumina/zirconia substrate, alumina/zirconia part, textile ceramic, alumina/zirconia nozzle, alumina/zirconia ball and alumina/zirconia brick, silicon carbide/graphite/BN crucible, silicon carbide/Si3N4 ball, SiC plate/board, PBN/BN part, graphite part. Also accept OEM and ODM.

The products are widely used in lamps and lanterns, electric appliances, electric heating products, nozzle, auto parts, wear-resistant parts of insulation material, etc.

The  company always adhere to quality survival, innovation and development, the integrity of the brand, to protect and thoughtful after-sales service enterprises as the goal. Over the years, our products are sold well all over the country, and exported to Germany, United States, Finland, Brazil, Russia, Mexico...more than 20 countries, product quality and service are highly praised by customers.

“Superior quality, preferential price” is our management tenet. We sincerely expect to cooperate with the masses of domestic and foreign customers, common development!

Welcome to visit and investigate of our company.


Why us?

* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.

Are you a trading company or a manufacturer?    

* We are a manufaturer. 

Can you provide the free samples?

* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.

Do you accept customized production based our specification?  

* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time? 

* 7 working days for standard products 30 days for customized products.

If you have another questions,please feel free to contact us.

Liling Xing Tai Long Special Ceramic Co.,Ltd

Contact: Fanny

Tel: +86 13975373343




Company address: Shentan Industrial Zone, Liling, Hunan, 412200

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The first thing we do is meeting with our clients and talk through their goals on a future project.
During this meeting, feel free to communicate your ideas and ask lots of questions.
    They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
    They are now widely exporting to 200 countries.

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