Introduction of Boron Nitride Ceramic Nozzle
Boron Nitride Ceramic Nozzles are made of boron nitride material, known for its excellent thermal conductivity, chemical stability and low coefficient of thermal expansion. This material property makes it perform well in high temperature and corrosive environments and is suitable for metal casting, glass manufacturing and other industrial fields.

boron nitride insulator ceramic nozzle
Specifications of Boron Nitride Ceramic Nozzle
|
Specification |
Description |
|
Material Type |
Hexagonal Boron Nitride (h-BN) |
|
Purity |
>98% |
|
Density |
2.10 – 2.25 g/cm³ |
|
Porosity |
<1% |
|
Thermal Conductivity |
60 – 300 W/m·K (depending on grade and processing method) |
|
Coefficient of Thermal Expansion |
4.0 x 10⁻⁶ /°C (at 20-1000°C) |
|
Maximum Operating Temperature |
Up to 2100°C in non-oxidizing atmospheres; up to 900°C in air |
|
Electrical Resistivity |
>10¹² Ω·cm at 20°C |
|
Chemical Resistance |
Excellent resistance to acids, alkalis, molten metals, and salts |
|
Non-Wetting Properties |
Resistant to wetting by many molten metals and glasses |
|
Hardness (Mohs) |
~2 (softer than diamond but harder than most metals) |
|
Flexural Strength |
150 – 300 MPa |
|
Compressive Strength |
200 – 500 MPa |
|
Surface Finish |
Can be polished to very smooth surfaces (<0.5 µm Ra) |
|
Tolerance |
±0.1 mm (can be tighter based on machining capabilities) |
|
Nozzle Diameter |
Customizable, typically ranges from 1 mm to several centimeters |
|
Nozzle Length |
Customizable, depends on application requirements |
|
Shape and Design |
Various shapes available including cylindrical, conical, and custom designs |
|
Application-Specific Features |
Special coatings or modifications for specific applications (e.g., anti-wear coatings) |
Features of Boron Nitride Ceramic Nozzles
Excellent thermal conductivity: Boron nitride has excellent thermal conductivity, which effectively dissipates heat and maintains an even temperature distribution, thereby improving process efficiency.
Chemically inert: Even in high temperature environments, boron nitride exhibits extremely high chemical stability to a wide range of substances such as molten metals, salts, acids and alkalis, reducing the risk of corrosion.
Low Coefficient of Thermal Expansion: This property helps to minimize thermal shock and cracking problems caused by rapid heating or cooling, enhancing component durability.
Electrical Insulation: As an excellent electrical insulator, boron nitride is critical for certain applications requiring electrical isolation.
Non-wetting: Most molten materials do not adhere to boron nitride surfaces, which not only simplifies the cleaning process, but also reduces the potential for material buildup and ensures smooth operation.
Applications of Boron Nitride Ceramic Nozzle
Metal casting: Used in pouring systems to withstand the high temperatures of molten metal without erosion.
Glass manufacturing: as part of a refractory material to help form glass products.
Additive manufacturing (3D printing): to provide a stable extrusion path for high-temperature plastics or composites.
Semiconductor Manufacturing: Used as a conveying component when handling high-temperature gases or liquids.
Other industrial applications include but are not limited to, chemical and aerospace industries, wherever there is a strict requirement for high temperature and corrosion resistance.

Company Profile
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, ceramic products, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality Boron Nitride Ceramic Nozzle, please feel free to contact us or click on the needed products to send an inquiry.
Payment Term
T/T, Western Union, Paypal, Credit Card etc.
Shipment Term
By air, by sea, by express, as customers request.

Packaging
FAQs of Boron Nitride Ceramic Nozzle
Q: How high temperature can a boron nitride ceramic nozzle withstand?
A: Boron nitride ceramic nozzles can withstand high temperatures up to about 2000°C, depending on the environment and conditions of use.
Q: Why choose boron nitride over other materials?
A: Because boron nitride has excellent thermal conductivity, chemical inertness, and a low coefficient of thermal expansion, which make it an ideal material choice for high temperature and corrosive environments.
Q: Are boron nitride ceramic nozzles easily damaged?
A: Boron nitride ceramic nozzles are very durable, but proper maintenance is still required under extreme conditions to ensure long-term performance.
Q: How do I clean Boron Nitride ceramic nozzles?
A: Due to their non-wetting properties, in most cases, a simple wipe is all that is needed to keep them clean; for stubborn stains, special cleaners can be used.
Q: What is the price of boron nitride ceramic nozzles?
A: Prices vary depending on factors such as size, shape and customization needs, so we recommend consulting directly with the manufacturer for an accurate quote.