Boron Nitride Gasket (BN Sealing Element)

Material: BN99, BN60, ZSBN, BN-AlN, HBR, ZSBN

SKU: HBN-G

Boron Nitride Gasket, BN Sealing Element

We provide standard products & tailor-made products for hot-pressed boron nitride gasket. Except for pure BN99 blank, we also supply BN composites with silicon carbide, calcium borate, aluminum nitride, and zirconia, to fulfill various demands of the customers. Check the boron nitride specifications for our pure BN99 and zirconia composite material ZSBN.

Boron Nitride Gasket Basic Information & Materials

Material	BN99, BN60, ZSBN, BN-AlN, HBR, ZSBN
Molecular Weight	24.82
Appearance	White
Melting Point	2973 °C
Density	2.1 g/cm3 (h-BN); 3.45 g/cm3 (c-BN)
Solubility in H2O	Insoluble
Refractive Index	1.8 (h-BN); 2.1 (c-BN)
Electrical Resistivity	13 to 15 10x Ω-m

Boron Nitride Materials

Material	Description
BN99	Hot pressed at high temperature (1900℃). Excellent corrosion resistance and thermal conductivity. Limited wear resistance Self-bonded and high purity (>99%)
BNBO	General-purpose material Bonded by boric oxide
BNCB	Calcium borate bonded boron nitride Enhanced moisture resistance
BN60	BN 60%, SiO2 40%
BN40	BN 40%, SiO2 60%
ZSBN	BN-45%, Zr2O3 45%

Boron Nitride Gasket Advantages & Applications:

Boron Nitride ceramic from Boron Carbide Parts China 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 (>3000C has been recorded).

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

-Boron Nitride components for PVD, MOCVD, MBE system.
-Insulators for high-temperature furnace
-Feedthrough for high voltage equipment
-Spacers for glass melting
-Boron Nitride parts for ion injection equipment

Packing

As a ceramic material, boron nitride is quite fragile in a lot of cases. Our Hot-Pressed Boron Nitride Gasket is 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.