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Overview of Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod
Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod 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 Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod
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

(Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod)
Specifications of Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod
These permeable alumina ceramic tubes and rods deal with severe warmth. They are made from pure Al2O3 (alumina). The product is very strong and resists chemicals well. Its essential function is high porosity. We provide 95% and 99% porous variations. This implies a lot of the product is tiny air pockets. This structure is lightweight. It additionally offers exceptional thermal insulation. Warm moves with gradually.
These tubes and rods stand up to really heats. They work well above 1000 ° C. They are steady in oxidizing environments. They withstand sudden temperature level modifications. Thermal shock damage is reduced. This makes them trusted for demanding uses.
Typical sizes are readily available. Outer sizes vary from 5mm to 50mm. Wall surface thicknesses vary from 1mm to 10mm. Sizes go up to 1000mm. Custom sizes are feasible. We meet details job demands. The material is electrically shielding. It has reduced thermal development. This keeps measurements secure under warmth. Its porous nature allows gas or liquid flow. It works as a filter or diffuser. It protects thermocouples and sensors. It shields components from direct fire.
Usual uses consist of heating system linings. They serve in high-temperature filtering systems. They operate in liquified steel handling. They are used for thermal barriers. They protect heating elements. They sustain stimulant carriers. They are vital in laboratories and market. This alumina ceramic withstands challenging conditions. It supplies long life span. It is an affordable remedy for warm management. Performance is consistent.

(Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod)
Applications of Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod
Refractory warm immune permeable hollow Al2O3 alumina ceramic tubes and poles are necessary in tough setups. These components are made from high pureness alumina. Alumina levels are either 95% or 99%. This high pureness provides excellent heat resistance. The material manages extreme temperatures conveniently. It won’t crack or melt under intense warm. This makes it optimal for heater cellular linings and kiln furniture. Televisions and poles see continuous high heat. They last much longer than metal components.
The permeable structure is another crucial feature. Tiny openings run through the product. This porosity enables gases or fluids to travel through. Think about filters or diffusers. The openings allow compounds stream while blocking solids. This is useful for molten steel purification. Shops use these tubes for cleaner casts. The porous layout also assists insulation. Entraped air pockets reduce warm transfer. Equipment remains hotter inside. Power expenses drop.
The hollow shape provides additional benefits. It conserves weight. Managing large parts obtains easier. The hollow facility provides a course. Cables or sensors can travel through securely. Thermocouples typically use these tubes. The ceramic protects sensors from direct fire. Lab devices relies on this security as well. Televisions shield fragile instruments. Electrical insulation is another plus. Alumina doesn’t carry out electrical energy. This protects against shorts near burner. Semiconductor producing uses these homes. The tubes manage harsh chemicals well. Acids and antacids do not damage high alumina. Chemical plants need this longevity. The product resists wear and abrasion. Relocating parts last longer. Upkeep requires decrease.
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 Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod
What are these ceramic tubes made of?
They are aluminum oxide ceramic tubes. The material is Al2O3. We call it alumina. It’s very pure. Purity levels are 95% or 99%. This makes them strong and heat resistant.
Why is the tube hollow?
The hollow design is important. It saves weight. It also helps with insulation. Heat doesn’t travel through the tube easily. This is good for high-temperature uses. It protects things outside the tube.
How hot can these tubes get?
They handle extreme heat very well. The exact temperature limit depends on the purity. The 99% tubes handle more heat. Generally, they work fine above 1700°C. They resist thermal shock. This means they handle sudden temperature changes without cracking.
What does “porous” mean for these tubes?
Porous means the material has tiny holes. These holes let gas or liquid pass through slowly. It’s useful for filtering. It also helps distribute heat evenly. The porous structure adds surface area. This is helpful in chemical reactions or catalysis.
Can I get different shapes besides tubes?
Yes. We make rods too. The rods are solid alumina. They offer the same high heat resistance. They are also very strong mechanically. Both tubes and rods serve different needs. Ask us about custom shapes. We can discuss options.

(Refractory Heat Resistance High 95% 99% Porous Hollow Al2o3 Alumina Ceramic Tube\/rod)
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