Overview of High Temperature and Corrosion Resistant Bn Tube Boron Nitride Ceramic

High Temperature and Corrosion Resistant Bn Tube Boron Nitride Ceramic ceramics are a class of advanced technical ceramics, often referred to as “white graphite.” They are renowned for their unique combination of properties, including high thermal conductivity, excellent electrical insulation, and outstanding thermal shock resistance. Available in various forms such as hot-pressed solids, coatings, and composites, BN ceramics are critical in demanding applications across aerospace, electronics, and metallurgical industries.

Features of High Temperature and Corrosion Resistant Bn Tube Boron Nitride Ceramic

• High Thermal Conductivity: Offers excellent heat dissipation, similar to metals, while maintaining electrical insulation.

• Excellent Thermal Shock Resistance: Withstands extreme and rapid temperature changes without cracking.

• Superior Electrical Insulation: Maintains high resistivity even at elevated temperatures.

• Low Dielectric Constant and Loss: Ideal for high-frequency and microwave applications.

• Good Chemical Inertness: Resists attack from most molten metals, slags, and salts.

• Non-wetting and Non-reactive: With many molten metals like aluminum and copper.

• High Temperature Stability: Can be used in inert or vacuum atmospheres up to 3000°C.

• Machinability: Can be precision-machined into complex shapes using conventional tools, unlike many other advanced ceramics.

Specifications of High Temperature and Corrosion Resistant Bn Tube Boron Nitride Ceramic

Boron nitride ceramic tubes handle extreme heat and harsh chemicals well. They work reliably where other materials fail. This ceramic withstands temperatures over 2000°C in inert atmospheres. In air, it remains stable up to about 900°C. Oxidation resistance is strong below this point.

Chemical stability is a major benefit. These tubes resist attack from most molten metals. They handle molten salts like cryolite effectively. Acids and alkalis generally don’t damage them. This makes them perfect for metal casting and semiconductor processing. They last long in tough conditions.

Key specifications matter for performance. High purity is essential, typically above 99%. This ensures predictable behavior. Density falls between 1.8 and 2.0 g/cm³. This provides good strength without excessive weight. Thermal conductivity is high, similar to stainless steel. Heat moves through the tube efficiently.

Thermal shock resistance is outstanding. The tube handles rapid temperature changes well. Sudden heating or cooling rarely causes cracks. This is vital for many industrial processes. Electrical insulation properties are excellent. The tube doesn’t conduct electricity, even at high heat.

Mechanical strength is adequate for tube applications. Flexural strength usually ranges from 30 to 60 MPa. Compressive strength is higher. Surface finish is smooth, minimizing friction. Custom sizes and shapes are possible. Standard diameters and lengths are readily available. These tubes serve critical roles in furnaces, reactors, and analytical equipment.

Applications of High Temperature and Corrosion Resistant Bn Tube Boron Nitride Ceramic

You need materials that can handle extreme heat and harsh chemicals. BN tube boron nitride ceramic delivers. This material withstands temperatures reaching 2000°C. It stays stable. It doesn’t melt or weaken. Many metals and molten salts attack other materials. BN tube resists them. It doesn’t corrode easily. This makes it very reliable.

Heat management matters a lot in hot processes. BN tube moves heat well. It helps control temperature. This is vital in furnaces or metal casting. You see it used for thermocouple protection. It shields sensors in molten aluminum or steel. The tube keeps the sensor safe. It gives accurate readings.

Molten metals stick to most surfaces. BN tube prevents this. Its surface doesn’t wet. Molten aluminum, magnesium, copper, or glass slide off. This stops build-up. It keeps processes clean and efficient. Less downtime for cleaning means more production. It saves time and money.

Handling corrosive gases is tough. BN tube works well here. It tolerates many reactive atmospheres. It doesn’t degrade. This is key for semiconductor manufacturing or chemical processing. It provides safe passage for aggressive vapors. It lasts longer than metal tubes.

Its electrical insulation is another plus. BN tube doesn’t conduct electricity. It insulates even at very high temperatures. This is useful in electrical heating elements or plasma applications. It prevents short circuits. It adds safety.

BN tube offers strength and thermal shock resistance. It handles rapid temperature changes without cracking. This durability is important for repeated use. It reduces replacement costs. Its combination of properties is hard to match.

Company Profile

Tanki New Materials Co.Ltd. focus on the research and development, production and sales of ceramic products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2015, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Aerogel, Aluminum Nitride, Aluminum Oxide, Boron Carbide, Boron Nitride, Ceramic Crucible, Ceramic Fiber, Quartz Product, Refractory Material, Silicon Carbide, Silicon Nitride, ect. please feel free to contact us.

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T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of High Temperature and Corrosion Resistant Bn Tube Boron Nitride Ceramic

What exactly is a BN tube?
It’s a tube made from boron nitride ceramic. This material is synthetic. It looks white and feels smooth. BN tubes handle extreme heat well. They also resist chemicals attacking them. They are electrical insulators too. This makes them useful in tough industrial jobs.

How hot can BN tubes get?
These tubes operate safely in air up to 900°C (1652°F). Short bursts can reach 1000°C (1832°F). In environments without oxygen, like nitrogen or argon gas, they withstand much higher temperatures. They can go up to 2800°C (5072°F). Few materials can match this heat tolerance.

What chemicals won’t damage BN tubes?
BN tubes fight off most molten metals. This includes aluminum, copper, and their alloys. They resist molten salts like cryolite too. Acids and alkalis generally don’t harm them. Common industrial solvents are also safe. They are not attacked by glass melts. Strong alkalis like molten sodium hydroxide are an exception. They can damage BN.

Why choose BN tubes over metal tubes?
Metals often melt or warp in extreme heat. Metals also corrode quickly around harsh chemicals. BN tubes stay solid and keep their shape. They don’t react with many molten metals or salts. Metals conduct electricity. BN tubes are excellent insulators. This prevents electrical shorts. They are also lighter than most metals. These advantages are crucial for safety and performance.

Where are BN tubes typically used?
You find them inside high-temperature furnaces. They act as thermocouple protection sheaths. They are crucibles for melting reactive metals. Semiconductor manufacturing uses them for crystal growth parts. They serve as liners or components in molten metal handling systems. Glass processing equipment relies on them. Any place needing heat resistance plus chemical inertness is a potential application.