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HBN Hot Pressed Boron Nitride Ceramic Rings

  • HBN Hot Pressed Boron Nitride Ceramic Rings
  • HBN Hot Pressed Boron Nitride Ceramic Rings
  • HBN Hot Pressed Boron Nitride Ceramic Rings
  • HBN Hot Pressed Boron Nitride Ceramic Rings
HBN Hot Pressed Boron Nitride Ceramic Rings
  • MASCERA
  • Xiamen, China
  • 20 days after order
  • 2000 pieces per month

Hot Pressed Boron Nitride (BN) Ceramic is an advanced ceramic material which can be used up to 2100℃ under atmosphere proction conditions. Boron nitride ceramic is used as good electrical insulatiors because it has high electrical resistivity and can withstand high breakdown voltage (about 3-4 times of alumina ceramic). Hot pressed boron nitride also has good thermal conductivity and low thermal expansion coefficient, will not crack even using in applications where rapid temperature change will occur. Hot pressed boron nitride ceramic can also be used as metal smelting crucibles because it will not react with most molten metals or glasses. Benefiting from its soft hardness, hot pressed boron nitride ceramic can be machined into high accuracy and complicated components easily with common metal processing tools.

Any inquiry please email info@mascera-tec.com or call +86 13860446139

HBN Hot Pressed Boron Nitride Ceramic Rings

Product Information
Item No.
MSJ/BN007
Materialhot pressed boron nitride
Shapecustomized
Colorlight grey
Sizecustomized
Surface roughnessfine grinding
MOQ10 pcs per type
Application
industrial applications


Hot Pressed Boron Nitride (BN) Ceramic is an advanced ceramic material which can be used up to 2100℃ under atmosphere proction conditions. Boron nitride ceramic is used as good electrical insulatiors because it has high electrical resistivity and can withstand high breakdown voltage (about 3-4 times of alumina ceramic). Hot pressed boron nitride also has good thermal conductivity and low thermal expansion coefficient, will not crack even using in applications where rapid temperature change will occur. Hot pressed boron nitride ceramic can also be used as metal smelting crucibles  because it will not react with most molten metals or glasses. Benefiting from its soft hardness, hot pressed boron nitride ceramic can be machined into high accuracy and complicated components easily with common metal processing tools.  


Mascera is a reputable supplier for hot pressed boron nitride ceramic, we have developped several grades of materail for different property requirement. Except for high purity 99% boron nitride ceramic, we also supply boron nitride ceramic composited with zirconia ceramic, aluminum nitride, silicon carbide and alumina ceramic etc. Welcome to contact us when you have demand, we will do our best to match your demands.




Main properties of hot pressed boron nitride


  • Low density

  • High electrical resistivity

  • High breakdown voltage resistance

  • High thermal conductivity

  • Low thermal expansion coeffient

  • Good thermal shock resistance 

  • High working temperature in vacuum and gas protection condition

  • Good corrosion resistance

  • Non-wetting with metals (without oxidization)

  • Good Machinability  



Typical applications of hot pressed boron nitride


  • High temperature furnace fixtures and supports

  • Nozzles for metal powder gas atomization

  • Nozzle for amorphous soft magnetic

  • Plasma arc insulators

  • Crucibles or containers for metals or glasses smelting

  • Break rings for continuous casting of metals

  • Electrical insulators for high temperature vacuum equipment

  • Electrical insulator for PVD/CVD vacuum coating equipment

  • Electrical insulator for semiconductor equipment

  • Thermocouple protection tubes



Material Data Sheet


Material TypeBN-997
BN-99BN-ABN-BBN-CBN-DBN-E

Main Content

BN>99.7%

BN>99%

BN+AL+SI

BN+ZR+AL

BN+SIC

BN+ZRO2

BN+AlN

Color

White

White

Light Grey

Light Grey

Grey Green

Dark Grey

Grey Green

Density (g/cm3)

1.6

1.95-2.0

2.2-2.3

2.25-2.35

2.4-2.5

2.8-2.9

2.8-2.9

Flexural Strength (Mpa)

18

30

65

65

80

90

90

Compressive Strength (Mpa)

45

85

145

145

175

220

220

Electrical Resistivity (Ω.Cm)

>1014

>1014

>1013

>1013

>1012

>1012

>1013

Max. Service Temp. (℃) 

@Air Condition

900

900

900

900

900

900

900

Max. Service Temp. (℃) @Vacuum Condition

1800

1800

1750

1750

1800

1800

1750

Max. Service Temp. (℃) 

@Inert Gas Condition

2100

2100

1750

1750

1800

1800

1750

Thermal Conductivity (W/Mk)

35

40

35

35

45

30

85

Thermal Expansion Coefficient (25 - 1000℃) (10-6/K)

1.5

1.8

2.0

2.0

2.8

3.5

2.8



Performance comparison of boron nitride ceramics and alumina ceramics:


Compared with alumina ceramics, boron nitride ceramics have the following advantages:


1. Boron nitride ceramic has maximum working temperature under atmosphere protection up to 2100 degrees, and alumina ceramic does not exceed 1700 degrees.

2. The thermal shock resistance of boron nitride ceramic is much better than alumina ceramic, boron nitride ceramic will not crack when unergoing rapid temperature rise or fall, it will not crack if it is taken out of the 1000 celsium degree furnace and blowed and quenched continuously for 100 times. Alumina ceramic is easy to crack when working temperature rises or falls quickly.

3. Electrical insulation strength of boron nitride ceramic is 3-4 times that of alumina ceramic.

4. Boron nitride ceramic does not react or bond with moleten glasses or metals, are used as containers for high-temperature sintering or melting crucibles, setter plates, etc.


Compared with alumina ceramics, the disadvantages of boron nitride ceramics are:


1. The strength, hardness and wear resistance of boron nitride ceramics are lower than that of alumina ceramic, and it is not suitable for use under vibration and friction conditions.

2. The use temperature of boron nitride ceramics in the air is only 1000 celsium degrees, and it will oxidize if it exceeds 1000 degrees. 



Available shapes of hot pressed boron nitride


  1. Ceramic rod / ceramic pin

  2. Ceramic tube / ceramic bushing / ceramic sleeve

  3. Ceramic ring / ceramic washer / ceramic spacer 

  4. Ceramic disc

  5. Ceramic plate / ceramic block

  6. Ceramic nozzle

  7. Ceramic crucible

  8. Other custom ceramic parts




Packing & Shipment


Package typecarton box with foam protection
Payment terms

TT / Western Union / Paypal

50% payment in advanced and 50% before shipment

Loading port Xiamen, China
Shipping wayBy sea / air / door-to-door express

boron nitride washer

boron nitride ceramic


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