Overview of Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed

Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed is precision-engineered from 99%+ pure aluminum oxide (Al₂O₃), offering outstanding mechanical strength and thermal stability. With a maximum operating temperature of 1800°C, these rings are widely used in high-wear applications such as bearings, seals, insulators, and semiconductor processing equipment. Their exceptional hardness and corrosion resistance make them ideal for demanding industrial environments.

Key Features of Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed

Extreme Temperature Resistance – Stable up to 1800°C with minimal thermal expansion

Superior Wear Resistance – Harder than steel, ensuring long service life

Excellent Electrical Insulation – High dielectric strength for electronic applications

Chemical Inertness – Resists acids, alkalis, and corrosive gases

Precision Machined – Tight tolerances for consistent performance in mechanical assemblies

(Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed)

Specifications of Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed

These alumina ceramic tubes feature one shut end. They are made from aluminum oxide. The material pureness varies from 45% to 99.7% Al2O3. This pureness level directly influences television’s efficiency. Greater pureness qualities supply premium homes. Typical qualities consist of 85%, 95%, and 99.7% Al2O3.

The tubes endure really high temperatures. They are secure as much as 1700 ° C. Their thermal shock resistance is great. This implies they take care of fast temperature modifications well. The product is extremely tough. It stands up to abrasion effectively. This hardness makes televisions long lasting in tough conditions. They are likewise strong mechanically.

Electrical insulation is exceptional. Televisions are non-conductive. They offer dependable insulation even at high temperatures. Chemical resistance is an additional key advantage. Alumina withstands attack from numerous acids and antacids. It is highly corrosion resistant. This makes televisions ideal for rough chemical atmospheres. They are inert and secure.

The closed end is formed precisely. It secures television firmly. The other end remains open. This layout protects sensitive components inside. Requirement measurements are readily available. Common dimensions consist of external diameters from 2mm to 50mm. Wall densities vary from 0.5 mm to 10mm. Lengths vary too. Custom-made sizes are feasible upon demand. Manufacturing uses techniques like extrusion or isostatic pushing. High-temperature sintering makes sure last strength.

These tubes are extensively used. They secure thermocouples and sensors. They function as heating system liners. They are utilized in kiln furniture. They find functions in semiconductor processing. They are important in research laboratory equipment. They work well in heating elements. They operate effectively as insulators. They offer reliable protection for electrical elements.

(Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed)

Applications of Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed

These alumina ceramic tubes feature one sealed end. They come in different alumina pureness degrees from 45% as much as 99.7%. The pureness degree you select affects the tube’s performance. Higher alumina material normally means much better efficiency. Tubes with 95% to 99.7% alumina are the most typical for requiring uses. These tubes stand up to extremely heats. They deal with warm up to 1700 ° C quickly. This makes them perfect for heating system components and kiln furniture. They also resist thermal shock well. Unexpected temperature modifications will not conveniently break them.

Alumina ceramic tubes are very hard. They are additionally very strong mechanically. This firmness gives them exceptional wear resistance. They benefit securing thermocouples and various other sensing units in severe places. Their smooth surface remains tidy quickly. These tubes are also chemically inert. Many acids and alkalis don’t damage them. This is essential in chemical processing tools. They see usage as linings and response vessels.

The electric insulation buildings are outstanding. Alumina tubes maintain high voltages securely contained. You find them in insulators for heaters and electrical feedthroughs. Their dielectric strength is extremely high. This is essential in electronic devices and high-voltage applications. The closed end adds extra defense. It shields sensitive elements inside television. It also develops an obstacle against gases or liquids.

These tubes function well in semiconductor production equipment. They are stable in vacuum settings. Their low thermal development stops leaks. They are likewise made use of in laser systems. The tubes protect optical components. The material stands up to laser damages efficiently. Metal processing utilizes them as well. They function as crucibles and protective sheaths. Their high pureness avoids contamination of liquified metals. Lower purity tubes (45-85% alumina) are much more affordable. They serve well in less extreme conditions. They provide good insulation and defense.

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 Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed

Here are five common questions about our Alumina Al2O3 45-99.7% Ceramic Tubes with One End Closed:

What does the alumina percentage mean? The alumina percentage (Al2O3) shows purity. A higher percentage means a stronger, denser tube. Tubes with 45-70% alumina are good for basic jobs needing decent heat resistance and strength. Tubes with 80-99.7% alumina are much better. They handle extreme heat better, resist chemicals better, and are stronger. Pick the purity based on your specific needs.

How hot can these tubes get? The maximum temperature depends on the alumina purity. Tubes with 45-70% alumina generally handle temperatures up to about 1400°C (2552°F). Tubes with 80-99.7% alumina withstand much higher heat. They can handle temperatures up to 1700°C (3092°F) or even more. Always check the exact rating for your chosen purity level.

Is the closed end completely sealed? Yes. The closed end is formed during production. It is a solid, leak-proof seal. This makes the tube ideal for holding liquids, powders, or gases. It protects sensitive parts inside furnaces or reactors. The seal is integral to the tube itself.

Can I get custom sizes and shapes? Yes. We offer custom manufacturing. We can make tubes to your specific outer diameter, inner diameter, and length requirements. We can also adjust the wall thickness. The closed end remains standard. Tell us your exact dimensions.

Are these tubes fragile? Alumina ceramic is hard and wear-resistant. It is also brittle. Handle the tubes carefully, especially the thin-walled types. Avoid sharp impacts or sudden temperature changes. These can cause cracking or breakage. Proper handling prevents damage.

(Alumina Al2O3 45–99.7% Ceramic Tube with One End Closed)