Hex Hot Pressed 99% HBN Boron Nitride Ceramic Sleeve Tube - 1.95-2.0 g/cm³ Density, 2400°C Max Temperature
Price:
us$10~us$100/p
MOQ:
10p
Delivery Time:
negotiable
Brand:
wuxi special ceramic
Product Description
Product Overview
Hexagonal Boron Nitride (HBN) ceramic sleeves and tubes are engineered for extreme temperature applications, offering exceptional thermal stability and chemical inertness. These components maintain structural integrity across wide temperature ranges from 900°C in air to 2400°C in inert gas environments.
Key Properties & Specifications
BN-99 Material Properties
| Property | Value |
|---|---|
| Main Content | BN > 99% |
| Binder | B2O3 |
| Density | 1.95-2.0 g/cm³ |
| Flexural Strength | 30 MPa |
| Compressive Strength | 100 MPa |
| Electrical Resistivity | >10¹⁴ ohm.cm |
| Max Working Temperature (Air) | 900°C |
| Max Working Temperature (Inert Gas) | 2400°C |
| Max Working Temperature (Vacuum) | 2200°C |
| Thermal Conductivity | 20 W/m·K |
| Thermal Expansion Coefficient (25-1000°C) | 1.5 × 10⁻⁶/K |
Material Comparison Table
| Material Type | BN-99 | BN + Ca | BN + Al2O3 | BN + ZrO2 | BN + AlN |
|---|---|---|---|---|---|
| Binder | B2O3 | CaB2O4 | AlBO3 | B2O3 | AlBO3 |
| Density (g/cm³) | 1.95-2.0 | 2.0-2.1 | 2.25-2.35 | 2.9-3.0 | 2.5-2.6 |
| Flexural Strength (MPa) | 30 | 35 | 85 | 120 | 110 |
| Compressive Strength (MPa) | 58 | 70 | 150 | 200 | 185 |
| Electrical Resistivity (Ω.cm) | >10¹⁴ | >10¹³ | >10¹² | >10¹² | >10¹³ |
| Max Service Temp - Air (°C) | 900 | 900 | 1000 | 1000 | 1000 |
| Max Service Temp - Vacuum (°C) | 1900 | 1900 | 1700 | 1800 | 1800 |
| Max Service Temp - Inert Gas (°C) | 2100 | 2100 | 1700 | 1800 | 1800 |
| Thermal Conductivity (W/m·K) | 30 | 32 | 35 | 30 | 55 |
| Thermal Expansion Coefficient (10⁻⁶/K) | 1.5 | 1.6 | 1.9 | 6 | 3 |
Applications
- Sintering rare earth materials and ceramics
- Melting alloy processing
- Electron beam evaporation coating systems
- High-temperature furnace components
- Metal welding and thermal processing
Technical Advantages
- Exceptional thermal cycling resistance prevents cracking in hot-cold environments
- Chemical inertness ensures no reaction with metals, ceramics, or rare earth materials
- Non-contaminating properties maintain product purity
- High electrical resistivity (>10¹⁴ Ω.cm) for insulation applications
- Multiple material compositions available for specific performance requirements
Quality Assurance: All mass production undergoes 100% inspection to ensure consistent performance and reliability.
Manufacturing Capabilities
Wuxi Special Ceramic Electrical specializes in producing various ceramic materials including alumina, silicon nitride, zirconia, steatite, boron nitride, cordierite, and mullite products. We accept custom production based on drawings or samples with trial production typically completed within 15 days and mass production within 30 days.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Special Ceramic Electrical Co.,Ltd
Location
No4 Longshan Road,Xinwu District,Wuxi City,Jiangsu Province
Contact Person
Zhu