Boron Nitride Disc
Diameter: 10~400mm, Thickness: >0.8mm
High-Performance Boron Nitride Discs (BN Ceramic Discs) for Extreme Environments
Edgetech’s Boron Nitride Discs (BN Ceramic Discs) deliver unmatched thermal and electrical performance in high-temperature applications. Engineered for extreme conditions, these discs withstand temperatures up to 900°C in air and 2100°C in inert gas, ensuring reliable operation in demanding environments.
Standard Boron Nitride Disc Sizes
Diameter/Width/Length: Up to 18″
Thickness: 0.03″ to 8″
(Custom sizes available upon request)
Boron Nitride Disc Basic Information & Materials
| Physical Property | |||||||
| Item | Units | BN99, >99.3% | BN997, >99.7% | BN+ZrO2 | BN+SiC | BN+AlN | BN+Si3N4 |
| Color | White | White | White Graphite | Greyish Green | White Graphite | Dark grey | |
| Density | g/cm3 | 2 | 1.6 | 2.25-2.35 | 2.4-2.5 | 2.8-2.9 | 2.2-2.85 |
| Mechanical properties | |||||||
| Mohs hardness | 2 | 2 | |||||
| Bending Strength | 115 | 85 | 120 | 150-320 | |||
| Compressive Strength | 225 | 130 | 220 | 380-480 | |||
| Flexural strength | Mpa | 35 | 20 | ||||
| Thermal properties | |||||||
| Maximum Use Temperature | in Air | 900℃ | 900℃ | 1000℃ | 1000℃ | 1000℃ | 1000℃ |
| in Insert | 2100℃ | 2100℃ | 1800℃ | 1800℃ | 1800℃ | 1800℃ | |
| In Vacuum | 1800℃ | 1800℃ | 1800℃ | 1800℃ | 1800℃ | 1800℃ | |
| Thermal Conductivity(20℃) | W/(m·K) | 40 | 50 | 20 | 30 | 80 | 40 |
| Thermal Expansion Coefficient(20℃-1000℃) | 10-6/K | 2 | -0.5 | 3.5 | 2.8 | 2.8 | 2.7 |
| Electrical properties | |||||||
| RT Resistivity | Ω.cm | >10^14 | >10^14 | >10^12 | >10^12 | >10^13 | >10^13 |
Why Choose Our Boron Nitride Discs?
Exceptional Thermal Conductivity – Maintains stability under rapid temperature changes.
Superior Electrical Insulation – High breakdown voltage (3KV/mm) and low dielectric constant (4), even at elevated temperatures.
Outstanding Thermal Shock Resistance – Performs reliably under extreme thermal cycling.
Chemical & Corrosion Resistance – Ideal for harsh industrial and laboratory settings.
Standard Boron Nitride Disc Sizes
Diameter/Width/Length: Up to 18″
Thickness: 0.03″ to 8″
(Custom sizes available upon request)
Key Applications of BN Ceramic Discs
High-Temperature Furnace Insulation – Stable performance in vacuum and inert atmospheres.
Vacuum System Components – Electrical insulation in semiconductor and aerospace applications.
Glass Melting Gaskets – Resists thermal stress and chemical corrosion.
Chemical Processing Equipment – Withstands corrosive environments.
Secure Packaging for Fragile BN Ceramics
Boron nitride is a precision ceramic requiring careful handling. We ensure safe delivery with:
Reinforced outer packaging
Protective cushioning materials
Vacuum-sealed options for sensitive components
For high-temperature stability, thermal management, and electrical insulation, Edgetech’s Boron Nitride Discs (BN Ceramic Discs) are the ideal solution. Contact us today for custom specifications!
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