BN1002 Boron Nitride Break Ring (H-BN Break Ring)

Catalog No. BN1002
Purity 99%
Size Various
Material Pure composite boron nitride
Shape Ring

Stanford Advanced Materials supplies our customers with high quality hexagonal boron nitride ceramic break rings (H-BN ceramic). BN break rings are available from high-temperature-(1900C)-formed 99% pure composite boron nitride materials.

Related products: Boron Nitride Rod, Boron Nitride Blank, Boron Nitride Tube, Boron Nitride Crucibles

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 a high vacuum environment. SAM Boron Nitride break rings are made from hot-pressed boron nitride blank. Hexagonal boron nitride (H-BN) behaves similarly to graphite mechanically but offers excellent electrical resistance.
SAM_BN break ring  

Available materials of SAM Boron Nitride Ring





Hot pressed at high temperature (1900C).

Excellent corrosion resistance and thermal conductivity. Limited wear resistance

Self-bonded and high purity (>99%)

Machinable Blanks

Finished Parts


General-purpose material

Bonded by boric oxide

Finished Parts


Calcium borate bonded boron nitride

Enhanced moisture resistance

Finished Parts


BN 60%, SiO2 40%

Finished Parts


BN 40%, SiO2 60%

Finished Parts


BN-45%, Zr2O3 45%

Finished Parts

Specifications of BN99 and ZSBN for your reference!

Prototyping service also available for other ceramics material
Alumina(99~99.7)                                            Silicon Nitride
Pyrolytic boron nitride                                      Boron Carbide
Silicon Carbide (98% 99.5%)                          Zirconia

Alumina_structure_ceramics silicon nitride SAM_PBN Crucible 

Typical Applications of Boron Nitride Ring

Boron Nitride ceramic ring from Stanford Advanced Materials 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:
-Nozzles for nonferrous metals metallurgy industry
-Insulators for high-temperature furnace
-Break rings for horizontal casting machine
-Feedthrough for high voltage equipment
-Boron Nitride parts for ion injection equipment

AIXlarge horizontal_casting_machine feed through standoff insulator

Packaging of SAM Boron Nitride Ceramic Ring

SAMs’ boron nitride ceramics rings are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

SAM_BN Ring_packaging_1 SAM_BN Ring_packaging_2

Related Products you may be interested in:
SiC Seal Ring, Alumina Bushing, BN Tube, BN Gasket/Seal


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