Overview of White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing

White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing is precision-engineered from 99%+ pure aluminum oxide (Al₂O₃), offering exceptional mechanical strength and thermal stability up to 1800°C. These sleeves provide superior protection for shafts, bearings, and moving components in harsh industrial environments. With outstanding resistance to wear, corrosion, and thermal shock, they are widely used in chemical processing, power generation, and heavy machinery applications.

Key Features of White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing

Ultra-High Temperature Resistance – Stable performance up to 1800°C

Exceptional Wear Resistance – 5x harder than steel for extended service life

Corrosion-Proof – Impervious to acids, alkalis, and solvents

Precision Tolerance – Tight dimensional control (±0.01mm) for perfect fit

Electrical Insulation – Excellent dielectric properties for electronic applications

Customizable Designs – Available in various IDs, ODs, and lengths

(White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing)

Specification of White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing

This White Graphite Porcelain Sleeve is made from 99% pure Hexagonal Boron Nitride (HBN). Individuals call it “white graphite.” It looks like graphite. It acts like graphite too. It has outstanding lubricating homes. It endures extreme heat far better than graphite. It manages temperature levels over 800 ° C in air easily. It goes also higher in inert atmospheres.

The material is a superb electric insulator. It won’t carry out electrical power. It provides fantastic thermal stability. Its shape stays consistent under intense warm. It spreads warm well in one instructions. This helps manage warm in applications. It withstands chemical assault. A lot of liquified steels will not adhere to it. Acids and alkalis do not hurt it. It stays inert. It lubes itself. Friction stays really reduced. Put on is minimal. This expands part life.

This HBN ceramic bushing is suitable for requiring environments. Metal spreading utilizes it. It lines sleeves for liquified metal handling. Light weight aluminum casting advantages substantially. It avoids sticking. It minimizes rubbing. Semiconductor production requires it. It works in high-temperature heating systems. It functions as crucibles, thermocouple sheaths, insulators. It develops precise parts like rings and tubes. It devices well. It attains limited tolerances.

The sleeve uses reliable performance. It minimizes downtime. It lowers maintenance costs. It offers smooth operation under stress and anxiety. It deals with thermal shock. It cools quickly without fracturing. This material is brittle. Handle it very carefully. Avoid sharp influences. It provides consistent results. It is a top choice for engineers requiring high-temperature lubrication and insulation.

(White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing)

Applications of White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing

White graphite ceramic sleeves provide remarkable efficiency sought after settings. This material is hexagonal boron nitride. HBN supplies distinct residential or commercial properties. Heat moves sidewards quickly with the product. Electrical present obtains blocked completely. The sleeve remains secure under extreme warm. It does not react with the majority of chemicals. This ceramic withstands wetting by molten steels. Slag sticks improperly to its surface area.

Semiconductor making usages these sleeves extensively. They line CVD reactor tubes. Wafer providers need thermal stability. HBN sleeves supply it. They prevent unwanted responses. Process purity stays high. Metal spreading benefits substantially. HBN bushings manage molten aluminum. They manage liquid magnesium. Liquid zinc flows efficiently. Metal doesn’t stick inside. Crucibles last much longer. Maintenance costs decline.

High-temperature furnaces depend on HBN elements. Thermocouple protection tubes utilize HBN. Insulation sleeves secure heating elements. Warm distributes uniformly. Power performance improves. Electrical discharge machining requires insulation. HBN bushings isolate electrodes. They endure trigger disintegration. Accuracy machining outcomes. Chemical handling devices makes use of HBN linings. Harsh acids don’t damage the product. Solid alkalis reason no injury. Corrosion resistance is outstanding. Shutoff seats and pump parts benefit.

Plasma applications require HBN security. The material deals with plasma etching. It withstands ion barrage. Microwave tubes make use of HBN insulators. Signal loss remains marginal. Glass manufacturing employs HBN components. Molten glass streams freely. Sticking is stopped. Steel vapor deposition needs HBN watercrafts. Evaporation resources work reliably. The product’s purity matters. It has 99% hexagonal boron nitride. Contamination risks are low.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, 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 Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

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

Shipment Methods

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

5 FAQs of White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing

What is this white graphite sleeve?
It’s a ceramic sleeve made from 99% pure hexagonal boron nitride (HBN). People call it “white graphite” because it looks and feels similar to graphite. But it’s actually a different ceramic material. It works well in very hot places.

How hot can it get?
This sleeve handles temperatures up to 900°C (1652°F) in normal air. It can get even hotter in special low-oxygen settings. It keeps its shape and strength under this heat. It doesn’t melt or break down easily.

Why use this instead of graphite?
Graphite burns away in air above 500°C. This HBN sleeve doesn’t oxidize like graphite does. It stays stable. It also doesn’t react with most molten metals or salts. This makes it cleaner and longer-lasting in high-heat jobs.

Where do people use it?
You find it in very hot machines. It’s common in furnace parts, crucibles for melting metal, and metal casting. It works as a liner, bushing, or insulator. It’s good where low friction and no sticking are needed. Molten metal slides off it easily.

Is it fragile?
Yes, it’s a ceramic. Handle it with care. Don’t drop it or hit it hard. It can chip or crack from impact. But once installed correctly in a stable setup, it performs reliably under extreme heat and pressure.

(White Graphite Ceramic Sleeve 99% Hexagonal Boron Nitride Ring HBN Ceramic Bushing)