Overview of Rubalit 99.7% Alumina Ceramic Tube Pipe One End Closed

Rubalit 99.7% Alumina Ceramic Tube Pipe 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 Rubalit 99.7% Alumina Ceramic Tube Pipe 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

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Specifications of Rubalit 99.7% Alumina Ceramic Tube Pipe One End Closed

This tube is made from Rubalit ceramic. It contains 99.7% alumina (Al₂O₃). One end is permanently closed. The other end stays open. This design is common for thermocouple protection tubes.

Material purity is high. This ensures strong performance. The ceramic offers great hardness. It resists wear very well. You get good strength against bending. It handles high heat. The maximum use temperature is 1650°C (3002°F). It deals with sudden temperature changes effectively. This is thermal shock resistance.

Electrical insulation is another key feature. It blocks electricity well. This is dielectric strength. The tube shields against chemical attack. Acids and alkalis generally don’t harm it. This is chemical inertness. Surface smoothness is high. This minimizes friction.

Common sizes are available. Outer diameters often range from 6mm to 25mm. Wall thickness varies. Typical options are 1.5mm, 2mm, or 3mm. Lengths are custom. Standard pieces might be 300mm, 500mm, or 1000mm long. Tighter tolerances are possible. This depends on production methods.

These tubes work in demanding places. Use them inside furnaces. They protect temperature sensors reliably. Industrial kilns need them. Semiconductor tools use alumina ceramics. Laser systems apply them. High-temperature lab equipment relies on them. They function as kiln furniture supports. Use them for sample holders. They guide thermocouples accurately. They isolate sensitive parts electrically.

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Applications of Rubalit 99.7% Alumina Ceramic Tube Pipe One End Closed

Rubalit 99.7% alumina ceramic tube pipes with one end closed offer strong performance in tough conditions. They handle very high temperatures well. They resist chemical attack effectively. Their electrical insulation is excellent. These tubes are very hard. They show good mechanical strength.

These tubes protect thermocouples. The closed end shields sensors from harsh furnace atmospheres. It prevents direct contact with molten materials. This ensures accurate temperature readings. The tubes work reliably in kilns and industrial heaters.

Furnace applications use these tubes often. They serve as radiant tubes. They act as muffles. They provide insulation sleeves. The closed end adds containment. It stops material leakage inside heating elements. This extends equipment life.

The semiconductor industry relies on them. They transport high-purity gases. They handle corrosive chemicals during chip making. The closed end acts like a cap. It seals systems. It prevents contamination. Alumina’s purity prevents particle shedding.

Laboratory settings find them useful. They contain samples during high-heat experiments. They protect sensitive instruments. The closed end holds powders or liquids securely. This allows safe processing under extreme conditions.

They function as protective sheaths. They guard thermowells. They shield heating elements. The closed end blocks entry of contaminants. It keeps internal components clean. This reduces maintenance needs.

Lighting systems use these tubes. They enclose high-intensity discharge lamps. The closed end provides a stable base. It withstands the intense heat and light. Alumina ensures long-term performance.

These tubes are crucial for various industrial processes. Their unique shape solves specific sealing and protection challenges. They deliver consistent results under stress.

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 Rubalit 99.7% Alumina Ceramic Tube Pipe One End Closed

What is Rubalit 99.7% Alumina Ceramic Tube Pipe One End Closed?
This tube is a high-purity ceramic part. It is made from 99.7% alumina. The tube has one open end and one permanently sealed end. This design creates a protective pocket or insulating space. The material offers exceptional heat resistance and electrical insulation.

How hot can this ceramic tube get?
The tube handles very high temperatures well. Its maximum continuous operating temperature reaches 1700°C (3092°F). It can survive short bursts up to 1800°C (3272°F). This makes it suitable for demanding furnace or kiln applications. It won’t melt or degrade easily under normal heat.

Will chemicals damage this alumina tube?
The tube resists many chemicals effectively. It withstands strong acids and alkalis. Common industrial chemicals usually don’t harm it. This chemical inertness is a major benefit. It allows use in harsh environments without quick failure.

Is this tube a good electrical insulator?
Yes, it provides excellent electrical insulation. Alumina ceramic does not conduct electricity. This is vital for high-temperature electrical applications. It prevents short circuits. It protects sensitive components from current.

Where is this closed-end tube typically used?
Its main use is in high-heat industrial settings. Common applications include thermocouple protection sheaths. It shields sensors inside furnaces or molten metal. It acts as insulating sleeves for heating elements. Laboratories use it for high-temperature sample holders. It serves anywhere needing a heat-resistant, insulating pocket.

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