High-Performance Boron Nitride Plates & Sheets for Extreme Applications
Premium BN Plates (HBN Ceramic Sheets) – Engineered for Excellence

Edgetech Industries manufactures precision hot-pressed boron nitride (BN) plates that deliver unmatched thermal management and electrical insulation properties. Our HBN ceramic sheets provide the perfect solution for demanding high-temperature applications where conventional materials fail.
Key Advantages of Our Boron Nitride Plates
✔ Exceptional Thermal Conductivity (30-60 W/mK) with Low Thermal Expansion
✔ Non-Wetting Surface – Resists adhesion to molten metals (Al, Cu, Zn, etc.)
✔ Superior Dielectric Strength – Ideal for high-voltage insulation
✔ Machinable to Precision Tolerances – Can be custom-shaped like metal
✔ Thermal Shock Resistant – Withstands rapid temperature cycling without cracking
Available in Standard & Custom Sizes:
Width/Length: Up to 18 inches
Thickness Range: 0.25″ to 8″
Purity Grades: 99%+ BN or composite formulations
Boron Nitride Ceramic 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 |
Custom Material Solutions of Boron Nitride Ceramics
We engineer BN plates with enhanced properties through composite formulations:

BN-SiC for improved wear resistance
BN-AlN for enhanced thermal conductivity
BN-ZrO₂ for increased mechanical strength
BN-CaB for specialized applications
Industrial Applications of BN Sheets & Plates
Our boron nitride plates serve critical functions in:
1. High-Temperature Processing
Furnace insulation components
Molten metal containment liners
Glass molding dies
2. Semiconductor & Vacuum Systems
Ion implantation equipment parts
CVD reactor components
Plasma arc insulators
3. Specialized Industrial Uses

BN Disc Boron nitride round sheet
Non-stick surfaces for aluminum casting
High-temperature gaskets & seals
Thermal management spacers
Reliable Packaging & Protection
We ensure safe delivery with:
Multi-Layer Cushioning Systems
Reinforced Edge Protectors
Moisture-Resistant Vacuum Sealing (on request)
Custom Crating for Large Orders
Why Choose Edgetech BN Plates?
ISO-Certified Manufacturing
Precision Machining Capabilities
Material Testing & Certification
Technical Support from Ceramics Experts
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