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Overview of 99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube
99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube 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 99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube
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

(99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube)
Specifications of 99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube
This industrial-grade porous alumina tube delivers exceptional performance. Its composition features 99.7% pure Al2O3. This high purity ensures outstanding chemical resistance. The tube withstands strong acids and alkalis effectively. Its structure contains interconnected pores throughout. Pore sizes are customizable. Typical ranges fall between 0.5 microns and 50 microns. This porosity allows precise control over fluid or gas flow rates. Permeability levels are carefully measured. You get predictable flow characteristics.
Extreme heat presents no problem. This alumina tube handles temperatures up to 1700°C. Its thermal shock resistance is very good. Rapid temperature changes cause minimal damage. Mechanical strength remains impressive despite the porosity. Crush strength is consistently high. The tube resists wear and abrasion effectively. Its dimensional stability is excellent. Shape and size stay constant under tough conditions.
Surface area is inherently large. This porous structure is a major advantage. It’s ideal for filtration applications. Molten metal filtration is a common use. Gas diffusion processes benefit greatly. Catalyst support is another key function. The tube works well in sensor housings. Thermal insulation applications utilize it too. Custom shapes and sizes are available. We tailor the porosity to your specific needs. Wall thickness and overall dimensions are adjustable. We meet your exact technical requirements.

(99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube)
Applications of 99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube
Porous alumina tubes offer real value across many industries. This ceramic material is mostly aluminum oxide, 99.7% pure. That high purity matters. It gives the tubes excellent chemical resistance. Harsh acids and bases don’t easily damage them. They handle very high temperatures too. Think furnaces and intense processes. Heat rarely causes problems for these tubes.
The key feature is the controlled porosity. Think tiny holes running through the ceramic. You can adjust the size of these holes precisely during manufacturing. This makes them brilliant filters. They separate particles from liquids or gases effectively. The filtration happens right inside the tube. Many industries rely on this. Chemical plants use them. The food and beverage sector uses them. Pharmaceuticals use them for clean, sterile filtration.
These tubes aren’t just for filtering. Their porous structure is perfect for handling gases. They act as diffusers or spargers. This means they bubble gas into liquids evenly. Wastewater treatment plants use this a lot. Aeration tanks need good oxygen distribution. These tubes deliver that efficiently. The bubbles are small and uniform. This boosts the oxygen transfer rate significantly. It saves energy and works better.
High-temperature jobs suit these tubes perfectly. They resist thermal shock well. Sudden temperature changes won’t crack them easily. So they work in kilns and furnaces. They support fragile parts during firing. They guide hot gases safely. They insulate electrical parts in hot zones. The material stays stable and strong even when very hot.
The porous structure helps with catalysis sometimes. It provides a huge surface area inside. Catalysts can coat this internal surface. Reactions happen faster and more completely. This is useful in chemical processing. It’s useful in exhaust gas treatment systems.
You get durability alongside performance. These tubes last a long time. They resist wear and corrosion. They keep their shape under stress. This reliability matters for industrial equipment. Downtime is expensive. These components minimize that risk. Their combination of traits solves difficult problems reliably.
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 99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube
What’s this tube made of?
It’s pure alumina ceramic. The material is 99.7% aluminum oxide (Al2O3). This high purity gives the tube excellent chemical resistance and strength. Tiny holes run through the walls making it porous.
How hot can it get?
This tube handles extreme heat well. It works reliably up to 1650°C (about 3000°F). It doesn’t melt or weaken significantly at these temperatures. This makes it suitable for demanding furnace applications.
Where is it typically used?
Its main use is filtration and gas distribution under high heat. Common applications include filtering molten metal in foundries. It’s also used in furnace burners for even gas flow. Other uses involve sensors and protective sheaths in harsh environments.
How do you clean it?
Cleaning is straightforward. Use compressed air to blow out loose particles. For deeper cleaning, soak the tube in a mild acid or alkaline solution. Rinse it thoroughly with clean water afterwards. Avoid abrasive scrubbing to prevent pore damage.
Can you make custom sizes?
Yes, custom sizes are possible. Manufacturers offer different diameters and lengths. Wall thickness and pore size can also be adjusted. Specify your exact requirements for inner and outer diameter, length, and porosity level needed.

(99.7% Industrial Porous Al2o3 Tube/Alumina Ceramic Tube)
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