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 exceptional mechanical strength and thermal stability. Designed to withstand temperatures up to 1800°C, these shafts provide superior performance in demanding applications including precision machinery, chemical pumps, semiconductor equipment, and high-speed bearings.

The combination of extreme hardness (9 Mohs), low friction coefficient, and excellent corrosion resistance makes alumina ceramic shafts ideal replacements for metal components in harsh environments.

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

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

Exceptional Wear Resistance – 5-10x longer lifespan than steel shafts

Corrosion Proof – Resistant to acids, alkalis and solvents

Lightweight – 60% lighter than steel with higher strength

Electrical Insulation – Excellent dielectric properties

Customizable – Available in various diameters, lengths and tolerances

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

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

Alumina ceramic tubes with one end closed are essential parts. They are made from light weight aluminum oxide (Al2O3). The purity level varies commonly. You can discover tubes from 45% Al2O3 as much as 99.7% Al2O3. The specific pureness influences the tube’s performance. Greater pureness generally implies much better performance. These tubes are extremely hard. They stand up to put on very well. They manage heats quickly. They will not melt or warp under extreme heat. They are additionally excellent electric insulators. Current can not go through them. Their chemical security is extremely high. They withstand strike from acids and alkalis. This makes them risk-free for extreme environments. You find them in numerous commercial setups.

These tubes can be found in numerous sizes. Typical outdoors sizes range from regarding 2mm to 150mm. Usual lengths range from regarding 10mm to 1000mm. Wall thickness also differs. It can be from less than 1mm to over 10mm. The closed end is formed during production. It produces a sealed bottom. This is essential for certain applications. The surface coating is normally smooth. It can be fine ground or brightened if needed. Tolerance degrees are essential. Higher pureness tubes often have tighter resistances. They are dimensionally a lot more precise. This matters for crucial settings up.

The 45% to 75% Al2O3 tubes are affordable. They provide excellent standard properties. They appropriate for general thermal insulation. They function well as safety sheaths. They prevail in heating system cellular linings. The 80% to 95% Al2O3 tubes are stronger. They deal with higher temperatures much better. They offer far better wear resistance. They are used for thermocouple security. They act as heater tubes. They are found in burner. The 99% and 99.7% Al2O3 tubes are leading entertainers. They offer maximum solidity. They have the most effective thermal security. They offer premium electric insulation. They are used in demanding semiconductor procedures. They are essential in high-temperature sensors. They function in specialized lab tools. They are crucial where severe pureness is critical. Product choice depends on the exact application requirements. Take into consideration temperature, chemical direct exposure, mechanical stress, and budget. These tubes address many engineering difficulties.

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

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

Alumina ceramic tubes with one closed end offer strong options for difficult commercial tasks. These tubes can be found in various purity levels from 45% to 99.7% Al2O3. Greater purity typically implies far better efficiency. The material itself takes care of very high temperatures conveniently. It withstands chemical strike well. It supplies exceptional electrical insulation. Its solidity supplies good wear resistance. The closed end is a vital function for certain jobs.

Safeguarding temperature level sensing units is a major usage. These tubes are excellent sheaths for thermocouples and RTDs. The closed end guards the sensor suggestion. This is essential inside furnaces, kilns, or liquified steel. The tube maintains the sensing unit risk-free from direct contact. It stops contamination. It ensures precise readings in extreme conditions.

Industrial home heating relies upon these tubes too. They function well as glowing heating system components. The shut end quits warmth from running away one method. They act as muffles or linings inside high-temperature heaters. The shut end consists of the warmed material. They guide thermocouple cables safely via warm furnace walls. The shut end obstructs warm and gases.

Semiconductor making usages high-purity alumina tubes. They move wafers or gases inside equipment. The shut end manages the flow course. It prevents contamination from going into television. The smooth surface area lessens particle generation. This is critical for cleanroom procedures.

Laboratories discover lots of usages for these tubes. They work as sample owners or crucibles for tiny quantities. The shut end holds liquids or powders safely. They shield sensors in speculative configurations. They shield electric parts requiring high-temperature seclusion. Their chemical inertness is very important for reactive materials.

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

What’s the highest temperature these tubes handle?
These alumina tubes tolerate extreme heat. They work continuously up to 1700°C. The exact limit depends on the alumina purity level. Higher purity usually means better temperature resistance.

Can chemicals damage the tubes?
Alumina resists most acids and alkalis very well. It’s especially good against strong acids. It also handles molten metals and salts without problems. This makes it reliable in tough chemical environments.

How do I install these closed-end tubes?
Installation is straightforward. You can secure them using standard ceramic anchoring methods. Common ways include using high-temperature cement or mechanical clamps. Ensure the mounting point stays stable and can handle the heat.

Why choose different alumina purity levels?
Different jobs need different purities. Lower purity (like 45-85%) costs less. It’s fine for less demanding applications. Higher purity (92-99.7%) offers better performance. It gives greater strength, higher temperature resistance, and superior electrical insulation. Pick the level that fits your specific needs.

How do I clean the tubes?
Cleaning is simple. Use common solvents like isopropyl alcohol or acetone. For tougher deposits, a mild abrasive cleaner works. Avoid hydrofluoric acid and strong phosphoric acid. These can damage the alumina surface over time.

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