Product Code : CE-BN-5N-CER
Boron Nitride is an advanced synthetic ceramic material available in solid and powder form. Its unique properties – from high heat capacity and outstanding thermal conductivity to easy machinability, lubricity, low dielectric constant, and superior dielectric strength – make boron nitride a truly outstanding material. In its solid form, boron nitride is often referred to as “white graphite” because it has a microstructure similar to that of graphite. However, unlike graphite, boron nitride is an excellent electrical insulator that has a higher oxidation temperature. It offers high thermal conductivity and good thermal shock resistance and can be easily machined to close tolerances in virtually any shape. After machining, it is ready for use without additional heat treating or firing operations.
We provide standard products & tailor-made products for hot-pressed boron nitride Nozzle. Except for pure BN99 plates & sheets, we also supply BN composites with silicon carbide, calcium borate, aluminum nitride, and zirconia, to fulfill various demands of the customers
Boron nitride composite ceramic ZSBN, using carbide and zirconia as bonding agents, improves the thermal shock resistance and wear resistance of the merchandise. It's commonly used as a separate ring for horizontal continuous casting and a nozzle made from an amorphous ribbon. These products have stable chemical properties, high thermal shock resistance, and high corrosion resistance. they're widely utilized in molten metal contact.
Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.
| Product | Product Code | Purity | Size | Contact Us |
Product Information
Boron Nitride is an advanced synthetic ceramic material available in solid and powder form. Its unique properties – from high heat capacity and outstanding thermal conductivity to easy machinability, lubricity, low dielectric constant, and superior dielectric strength – make boron nitride a truly outstanding material. In its solid form, boron nitride is often referred to as “white graphite” because it has a microstructure similar to that of graphite. However, unlike graphite, boron nitride is an excellent electrical insulator that has a higher oxidation temperature. It offers high thermal conductivity and good thermal shock resistance and can be easily machined to close tolerances in virtually any shape. After machining, it is ready for use without additional heat treating or firing operations.
We provide standard products & tailor-made products for hot-pressed boron nitride Nozzle. Except for pure BN99 plates & sheets, we also supply BN composites with silicon carbide, calcium borate, aluminum nitride, and zirconia, to fulfill various demands of the customers
Boron nitride composite ceramic ZSBN, using carbide and zirconia as bonding agents, improves the thermal shock resistance and wear resistance of the merchandise. It's commonly used as a separate ring for horizontal continuous casting and a nozzle made from an amorphous ribbon. These products have stable chemical properties, high thermal shock resistance, and high corrosion resistance. they're widely utilized in molten metal contact.
Synonyms
h-BN; Elbor; hexagonal boron nitride; Boron mononitride; Nitridoborane; Nitriloborane
ZSBN Nozzle Specification
Dimensions
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Grade | ZSBN |
| Compositions | BN+SiC+ZrO2 |
| Density | 2.3-3.0 g/cm3 |
| 25°C Volume Resistivity | >10^12 Ω·cm |
| Max. Service Temp. (°C) | 900 (Oxygen) |
| 1700 (Inert Gas) | |
| 1700 (High Vacuum) | |
| Flexural Strength | 100 Mpa |
| Compressive Strength | 300 Mpa |
| Coefficient of Thermal Expansion (25-1000°C) | 4.0 10^-6/K |
| Thermal Conductivity | 40 W/mK |
| Mechanical Properties | Unit | Grade A | Grade HP | Grade AX05 | Grade M | Grade M26 | Grade ZSBN |
| BN | BN | BN | BN -40%、 SiO260% | BN -60%、SiO2-40% | BN -45%、ZrO2-45%、bsg <10 | ||
| Density | g/cm3 | 2 | 2 | 1.9 | 2.3 | 2.1 | 2.9 |
| Compressive Strength | MPa | 143 186 | 96 | 25 | 316.9 289.4 | 218.7 253.8 | |
| Flexural Strength @ 25°C | MPa | 94 65 | 59 45 | 22 21 | 103 76 | 62 34 | 144 107 |
| Young modulus | GPa | 47 74 | 40 60 | 17 71 | 94 106 | 71 71 | |
| Thermal Properties | |||||||
| Thermal Conductivity | W/mK | 30 34 | 27 29 | 78 130 | 12 14 | 11 29 | 24 34 |
| Max Temp (Oxidizing) 1 | °C | 850℃ | 850℃ | 850℃ | 1000℃+ | 1000℃+ | 850℃ |
| Max Temp (Inert) 1 | °C | 1200℃ | 1150℃ | 2000℃ | 1000℃+ | 1000℃+ | 1600℃ |
| 25-400°C | 10-6/K | 3.0 3.0 | 0.6 0.4 | -2.3 “0.7 | 1.5 0.2 | 3.0 0.4 | 4.1 3.4 |
| 400-800°C | 10-6/K | 2.0 1.4 | 1.1 0.8 | -2.5 1.1 | 1.2 0.4 | 2.5 0.1 | 5.6 4.3 |
| 800-1200°C | 10-7/K | 1.9 1.8 | 1.5 0.9 | 1.6 0.4 | 1.2 0.8 | 3.0 0.1 | 7.2 5.2 |
| 1200-1600°C | 10-8/K | 5.0 4.8 | 2.8 2.7 | 0.9 0.3 | 4.6 3-4 | ||
| 1600-1900°℃ | 10-9/K | 7.2 6.1 | 0.5 0.9 | ||||
| Electrical Properties | |||||||
| Dielectric Strength | kV/mm | 88 | >10 | 79 | >10 | 66 | >9 |
| Dielectric Constant | 1 MHz | 4.6 4.2 | 4.3 4.0 | 4.0 4.0 | 3.4 3.7 | 4.5 3.8 | |
| Dissipation Factor | 1 MHz | 1.2-3 / 3.4-3 | 1.2-3 / 3.0-3 | 1.2-3 / 3.0-3 | 3.0-3 / 3.1-3 | 1.7-3 / 6.7-3 | 4.5-2 / 6.7-2 |
| Volume Resistivity @25°C | ohm-cm | >10 >1014 | >1013 >1013 | >1013 ●1014 | >10'4 >1014 | >1013 >10'4 | ≥1014 、101 |
Note: the former = Parallel and the latter= Perpendicular
Boron Nitride Nozzle Materials
| Material | Description |
| BN99 | Hot pressed at high temperature (1900C).Excellent corrosion resistance and thermal conductivity. Limited wear resistanceSelf-bonded and high purity (>99%) |
| ZSBN | BN-45%, Zr2O3 45% |
Boron Nitride Nozzle Advantages
- Excellent machinability，BN rods are easily machinable, and they are of high performance:
- Low wettability to molten metal
- Low dielectric constant，k=4
- Relatively high dielectric strength，
- High dielectric breakdown strength, >40 KV/mm
- Relatively high thermal conductivity with low thermal expansion Extremely high working temperature with proper inert gas protection (>3000C has been recorded). Chemical Vapor Deposition (CVD)
- Excellent thermal shock resistance
- High electrical resistivity – excluding aerosols, paints, and ZSBN grade
- Low density • High thermal conductivity
- Anisotropic (thermal conductance differs between parallel and perpendicular planes to pressing direction)
- Corrosion resistant
- Good chemical inertness
- High temperature material
Boron Nitride Machining
Hexagonal boron nitride can be machined into highly complex geometries with very tight tolerances.
Applications of Boron Nitride Nozzle
Used as a horizontal continuous casting separation ring
Used as metallurgical atomization and powder metallurgy atomizing nozzle
Used as a thin strip continuous casting side sealing board
Widely used in the contact of various molten metals
Packing of Boron Nitride Nozzle
Standard Packing:
Sealed bags in carton boxes. Special package is available on request.
As a ceramic material, BN is quite fragile in a lot of cases. The BN Nozzle are usually held in plastic bags by vacuum, and protected with heavy foam.
ATTs’ BN Nozzle is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | BN |
| MDL Number | MFCD00011317 |
| EC No. | 233-136-6 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 66227 |
| IUPAC Name | azanylidyneborane |
| SMILES | B#N |
| InchI Identifier | InChI=1S/BN/c1-2 |
| InchI Key | PZNSFCLAULLKQX-UHFFFAOYSA-N |
| CAS | 10043-11-5 |
