HBN0921 Boron Nitride Ring, BN Ring

Boron Nitride Ring Properties

Hot Pressed Boron Nitride Ring

Compound Formula	BN
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

Download Boron Nitride Ring SDS

Boron Nitride Ring Description

Boron nitride, also known as BN, Hexagonal boron nitride (H-BN) and hot-pressed boron nitride, is a good self-lubricate ceramic that can withstand high temperature and maintain its lubricating capability in high vacuum environment. Our Boron Nitride crucibles are made from hot-pressed boron nitride blank. Hexagonal boron nitride (H-BN) behaves similarly to graphite mechanically, but offers excellent electrical resistance.

Boron Nitride Ring Advantages

– Low wetability 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).

Boron Nitride Ring Applications

Boron Nitride ceramics from China Special Ceramic Parts, Inc. can withstand high temperature in a high vacuum environment, plus it has excellent corrosion resistance and electrical resistance. Thus, Boron Nitride ceramic product is an ideal choice in a wide range of industries, such as:
– Used in nozzles for nonferrous metals metallurgy industry
– Used in insulators for high temperature furnace
– Used as break rings for horizontal casting machine
– Used to feed through for high voltage equipment
– Used in Boron Nitride parts for ion injection equipment

Boron Nitride Ring Available Materials

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

Specifications of BN99 and ZSBN for your reference!

Packing Service

ACM’s Hot Pressed Boron Nitride Ring is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.