The hot-pressed BN exhibits a unique combination of chemical, electrical, mechanical, and thermal properties, making it suitable for a wide range of high-performance industrial applications. Such as high heat capacity and outstanding thermal conductivity combined with easy machinability and superior dielectric strength. BN can easily be machined to close tolerances in virtually any shape. After machining, it is ready for use without additional heat treating or firing operations. In inert and reducing atmospheres, Boron Nitride will withstand temperatures over 2,000°C. BN composite characteristics depend on the type and amount of binder, overall composition, and the type of bond between layers. Edgetech offers standard products & tailor-made products for Boron Nitride plates.

The BN plate we can provide is Width/Length <18″, 0.25″<thickness<8″. While Enhanced boron nitride plates are usually available within 12″x12″x 6″.

Boron Nitride Plates Basic Information & Materials


BNH99, BN99, BN-ZS, BN-AlN



Melting Point

2700 °C


White/White Graphite/Greyish Green

Density, g/cm3

1.6~2.9 g/cm3

Solubility in H2O


Electrical Resistivity, Ω·m


Boron Nitride 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 Plate Advantages & Applications:

Boron Nitride ceramic from Edgetech Industries Ceramics Division can withstand high temperatures in a high vacuum environment, plus it has excellent corrosion resistance and electrical resistance.

-Low wettability to molten metal

-Relatively high thermal conductivity with low thermal expansion

-Relatively high thermal shock resistance

-Extremely high working temperature with proper inert gas protection

Based on the above properties, Boron Nitride Plate is an ideal choice in a wide range of industries, such as:

-Electric insulators in vacuum system

-Insulators for high-temperature furnace

-Spacers for glass melting

-Boron Nitride parts for ion injection equipment


As a ceramic material, boron nitride is quite fragile in a lot of cases. Our Hot-Pressed Boron Nitride Plates are carefully handled to minimize damage during storage and transportation. Suitable outer boxes and inner cushioning materials are used for BN products, vacuum packing is also engaged for some of the parts.