Ceramic High-Temperature Protection Ring Boron Nitride Sealing Vacuum Gasket Industrial Ceramic Part Cutting Description High-Temperature Furnace Components High-temperature furnaces (up to 2000°C) require components that can endure prolonged exposure to extreme heat without deformation or degradation—and hBN ceramics are engineered for this exact purpose. Hot-pressed at the same extreme temperatures they’re designed to withstand (2000°C, 2000 psi), our hBN billets create dense, machinable materials that excel as furnace linings, heating element supports, crucibles, and furnace fixtures. Their exceptional thermal shock resistance and low thermal expansion ensure long service life, reducing maintenance frequency and replacement costs. Whether you need standard or custom-shaped furnace components, HBN ceramics deliver unmatched performance and durability for your high-temperature processing needs. |  | Boron Nitride Ceramic Insulating Parts - Excellent thermal shock resistance
- High electrical resistivity – excluding aerosols, paints, and ZSBN
- Low density
- High thermal conductivity
- Anisotropic (thermal conductance is different in different planes relative to pressing direction)
- Corrosion resistant
- Good chemical inertness
- High temperature material
- Non-wetting
- High dielectric breakdown strength, >40 KV/mm
- Low dielectric constant, k=4
- Excellent machinability
| Mechanical Properties | Item | Unit | Data | | Main Content | % | 99.9 | | Bulk Density | g/cm3 | 1.95-2.0 | | Compression Strength | MPa | 100 | | Flexural Strength | MPa | 30 | | Electrical Resistivity | Ohm.cm | >1014 | | Thermal Conductivity | W/MK | 20 | | Expansion Coefficient | 10-6 K (20-1000°C) | 1.5 | | Max. Work Temperature | °C(air) | 900 | | °C (inert gas) | 2400 | | °C (vacuum) | 2000 | Various Types of BN Ceramic We Can Do OEM and 0BM According to Your Drawing and Requirements. Hexagonal boron nitride can be machined into highly complex geometries with very tight tolerances. Precision Ceramics has 3, 4 and 5 axis CNC machining capabilities and over 20 years of experience creating custom boron nitride components. Precision Ceramics is your Boron Nitride machining specialist for your technical ceramic prototyping & manufacturing needs; we are always happy to use our many years of advanced ceramics experience to provide advice on materials, design, and application. If you would like to buy Boron Nitride plates, bars, rods, tubes, Aerosol Sprays, Paintable Coatings, Industrial Powders, or custom machined parts, please contact us and one of our experts will be happy to assist you. Packing Q1. Do you provide product samples? Yes, we provide samples subject to availability. A nominal sample fee may apply in some cases, and shipping costs are borne by the customer. Q2. What are your accepted payment methods? We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal. Q3. What is your typical delivery lead time? Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes. Q4. Do you perform quality inspection before shipment? Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards. Q5. What other ceramic materials do you offer? We supply a range of advanced ceramic materials, including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramic |