Hexagonal Bn Boron Nitride Ceramic Tube for Insulation
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Product Highlights
- Superior Electrical Insulation: Electrical breakdown strength is 3-4 times that of alumina.
- High Thermal Conductivity: Thermal conductivity reaches 127 W/m.k for efficient heat transfer.
- Chemical Stability: Resistant to acid, alkali, molten metal, slag, and glass corrosion.
- Non-Stick Surface: Does not react or adhere to metals, ceramics, and rare earth materials.
- High Purity Material: Boron Nitride content exceeds 99% for consistent performance.
- Low Density: Density is 1.92 g/cm3, offering lightweight structural advantages.
Product Attributes
- Customization
- Available
- Application
- Refractory, Industrial Ceramic
- Ceramic Tube & Rod
- Ceramic Tube
- Model NO.
- YN-491
- Feature
- Strong Electrical Insulation, Low Thermal Expansion
- Working Temperature
- 900c -1800c
- Application 2
- Electric Furnace Components
- Synonym
- Hexagonal Boron Nitride (H-Bn)
- Material
- Bn Boron Nitride
- Type
- Ceramic Tube, Ceramic Tubes
- Transport Package
- Plywood Cases or Carton
- Specification
- CUSTOMIZED
- Trademark
- Yunnuo
- Origin
- China
- HS Code
- 8547100000
- Production Capacity
- 50000 PCS Per Year
Product Images of Hexagonal Bn Boron Nitride Ceramic Tube for Insulation
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Hexagonal Bn Boron Nitride Ceramic Tube for Insulation -
Hexagonal Bn Boron Nitride Ceramic Tube for Insulation -
Hexagonal Bn Boron Nitride Ceramic Tube for Insulation -
Hexagonal Bn Boron Nitride Ceramic Tube for Insulation -
Hexagonal Bn Boron Nitride Ceramic Tube for Insulation -
Hexagonal Bn Boron Nitride Ceramic Tube for Insulation -
Hexagonal Bn Boron Nitride Ceramic Tube for Insulation
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Product Description
Boron nitride BN crucibles
Features:Good electrical insulation, thermal conductivity, excellent thermal shock resistance and chemical stability, good moisture resistance to molten metal, slag and glass.
Boron nitride ceramic is resistant to acid and alkali corrosion, has strong electrical insulation, and has an electrical breakdown strength of 3-4 times that of alumina. Boron nitride ceramics have excellent high temperature resistance.
The use temperature is 1800 degrees under vacuum, and the use temperature is 2100 degrees under the protection of atmosphere (nitrogen, argon and other inert gases). The boron nitride ceramic has a high thermal conductivity, strong thermal shock resistance, and does not crack when quenched at 1500 degrees. It is taken out of the furnace at a temperature of 1000 degrees for 20 minutes, and then blown and quenched for hundreds of times without cracking. Boron nitride ceramics do not react and do not adhere to many metals, ceramics, rare earths and other materials.
Application: high temperature electric furnace components (high temperature insulation sleeves, etc.), metal evaporation crucibles, various devices for molten metal or glass, precious metal or special alloy casting mold parts, high temperature support and other stressed components, molten metal transport pipes, nozzles ect.
Features:Good electrical insulation, thermal conductivity, excellent thermal shock resistance and chemical stability, good moisture resistance to molten metal, slag and glass.
Boron nitride ceramic is resistant to acid and alkali corrosion, has strong electrical insulation, and has an electrical breakdown strength of 3-4 times that of alumina. Boron nitride ceramics have excellent high temperature resistance.
The use temperature is 1800 degrees under vacuum, and the use temperature is 2100 degrees under the protection of atmosphere (nitrogen, argon and other inert gases). The boron nitride ceramic has a high thermal conductivity, strong thermal shock resistance, and does not crack when quenched at 1500 degrees. It is taken out of the furnace at a temperature of 1000 degrees for 20 minutes, and then blown and quenched for hundreds of times without cracking. Boron nitride ceramics do not react and do not adhere to many metals, ceramics, rare earths and other materials.
Application: high temperature electric furnace components (high temperature insulation sleeves, etc.), metal evaporation crucibles, various devices for molten metal or glass, precious metal or special alloy casting mold parts, high temperature support and other stressed components, molten metal transport pipes, nozzles ect.
| Item | Value |
| Content of BN % | >99% |
| Density (g/cm3) | 1.92 |
| Compression strength (kg/cm2) | 72 |
| Rupture strength (kg/cm2) | 55 |
| Volume resistivity (Ω.cm) | >10^14 |
| Dielectric constant (108hz) | 4 |
| Breakdown voltage (Kv/mm) | 35 |
| Thermal conductivity (W/m.k) | 127 |
| Porosity | >0.3% |
| Moh's hardness | 2 |
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2442435". Items marked "
" are certified.
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Company Profile
Shanghai Yunnuo Industrial Co., Ltd. is located in Shanghai, China. Our team at yunnuo has the experience to assist you in producing the required items made of hard metal and technical ceramic that will fulfill your most stringent requirements. Our main products as below:
Industrial ceramic products: (Al2O3)alumina ceramics, (Zro2) zirconia ceramics, (MGO) magnesium oxide ceramics, (SiC)silicon carbide ceramics, steatite ceramic, mullite ceramic, cordierite, boron nitride, machinable ceramics, mica and other custom-made ceramics, etc. These are widely used in factories, research institutes, and other enterprises and institutions.
Our company's business philosophy: Integrity, efficiency, innovation, transcendence, and win-win. Our company is to focus on the needs of customers, all for the sake of customers, in the principle of good faith, we provide professional, efficient, high-quality services, constantly innovate in technology and products, surpass ourselves, strive for excellence, and achieve a win-win situation.
About Our Factory & Business Background
- Address
- Room 302, 3rd Floor, Building 1, No. 535 Shennan Road, Minhang District, Shanghai, China
- Terms of Payment
- T/T, PayPal, Western Union, Money Gram, by cash
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF, DAP, Others, FCA
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- Shanghai,Ningbo
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2019-11-01
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Is the material resistant to chemical corrosion?
- Yes, it is resistant to acid, alkali, molten metal, slag, and glass.
- What is the electrical breakdown strength compared to alumina?
- The electrical breakdown strength is 3 to 4 times higher than that of alumina.
- Does the material stick to metals or ceramics?
- No, it does not react or adhere to many metals, ceramics, and rare earth materials.
- What is the purity level of the Boron Nitride?
- The content of BN is greater than 99%.
- What are the common applications for this tube?
- It is used for high-temperature electric furnace components, crucibles, molten metal transport pipes, and casting molds.
- What is the thermal conductivity of the ceramic?
- The thermal conductivity is 127 W/m.k.
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