When protection, resistance, and sturdiness are required, the first choice is alumina, or aluminum oxide. The strength and endurance of alumina has made it the first choice for conditions that require a highly resistant material that will not welt or decay in stressful conditions. XDL Ceramics is the leader producer in China of alumina custom made products, including our large selection of alumina ceramic tubing. Our high-quality manufacturing processes are known for producing a variety of alumina products and parts.
Alumina ceramic tubes have characteristics and features that make them ideal for a variety of conditions. This high-quality tubing has exceptional hardness, high resistance to chemicals, is long wearing, and is a perfect insulation material. Its varied properties have made it a staple for industries that require tubing capable of withstanding extreme temperatures.
The quality of an alumina ceramic tube depends on its purity. The higher the purity the more resistant it is. Tubing produced by XDL Ceramics has a purity factor of 99.5% or higher. Tubes can be shaped in a variety of diameters depending on the application. Our alumina tubes have high thermal conductivity and are capable of withstanding severe compression.
Since an alumina ceramic tube is dielectric, it is perfect for insulating electrical connections. The density of the ceramic material provides protection against incursions from gases or liquids. Due to the fact that it is resistant to wear and abrasion and maintains its stability at 1800℃, it is long lasting and dependable. Once installed, it can endure any hazardous or hostile conditions.
Compared to metals and polymers, an alumina tube is the first choice for extreme conditions. Its general properties and durability have made it an essential part of products that need to last but require low maintenance. This lasting quality has made it the number one choice for the production of products with a long life.
The other forms of tubing made from various polymers or metals may need frequent cleaning or replacement. Once alumina ceramic tubes are installed, they are guaranteed to last for years. An alumina tube’s resistance to chemicals and inability to conduct electricity makes it a perfect protective agent and insulator.
|Density||g / cm3||3.70||3.90||3.92|
|Compressive Strength @ 25 C||Mpa||2229||2091||2350|
|Tensile Strength @ 25 C||MPa||200||200||252|
|Flexural Strength @ 25 C||MPa||331||276||320|
|Elastic Modulus @ 25 C||GPa||290||331||380|
|Hardness : Knoop Rockwell||(Gpa) Kg/mm2
|(15) 1510 90|
|Thermal Conductivity @ 25 C||W / m-Deg K||20.8||28.1||31.6|
|Coefficient of Thermal Expansion @ 25-1000 C||1 X 10-6 /
|Specific Heat @ 25 C||cal / g / Deg C||.184||.184||.180|
|Maximum Working Temp.||Deg C||1650||1650||1700|
|VolumeResitivity @25C @700 C||ohm-cm
|1 X 10-13
1 X 10-8
2.2 X 10-9
|1 X 10-13
6 x 10-7
|Dielectric Constant 1Mhz
|e’ / eo||8.6||9.4||10.0|
|Dissipation Factor 1 Mhz
|XDL-1||0.394 in||0.591 in||10.0 mm||15.0 mm|
|XDL-2||0.433 in||0.591 in||11.0 mm||15.0 mm|
|XDL-3||0.625 in||0.875 in||15.9 mm||22.2 mm|
|XDL-4||0.472 in||0.630 in||12.0 mm||16.0 mm|
|XDL-5||0.472 in||0.669 in||12.0 mm||17.0 mm|
|XDL-6||0.437 in||0.688 in||11.1 mm||17.5 mm|
|XDL-7||0.512 in||0.750 in||13.0 mm||19.1 mm|
|XDL-8||0.500 in||0.750 in||12.7 mm||19.1 mm|
|XDL-9||0.591 in||0.787 in||15.0 mm||20.0 mm|
|XDL-10||0.630 in||0.866 in||16.0 mm||22.0 mm|
|XDL-11||0.669 in||0.866 in||17.0 mm||22.0 mm|
|XDL-12||0.709 in||0.945 in||18.0 mm||24.0 mm|
|XDL-13||0.750 in||1.000 in||19.1 mm||25.4 mm|
|XDL-14||0.669 in||1.063 in||17.0 mm||27.0 mm|
|XDL-15||0.787 in||1.063 in||20.0 mm||27.0 mm|
|XDL-16||0.886 in||1.126 in||22.5 mm||28.6 mm|
|XDL-17||0.827 in||1.181 in||21.0 mm||30.0 mm|
|XDL-18||0.906 in||1.181 in||23.0 mm||30.0 mm|
|XDL-19||0.984 in||1.260 in||25.0 mm||32.0 mm|
|XDL-20||1.125 in||1.375 in||28.6 mm||34.9 mm|
|XDL-21||1.063 in||1.378 in||27.0 mm||35.0 mm|
|XDL-22||1.181 in||1.496 in||30.0 mm||38.0 mm|
|XDL-23||1.250 in||1.500 in||31.8 mm||38.1 mm|
|XDL-24||1.181 in||1.575 in||30.0 mm||40.0 mm|
|XDL-25||1.339 in||1.654 in||34.0 mm||42.0 mm|
|XDL-26||1.500 in||1.750 in||38.1 mm||44.5 mm|
|XDL-27||1.496 in||1.811 in||38.0 mm||46.0 mm|
|XDL-28||1.625 in||1.875 in||41.3 mm||47.6 mm|
|XDL-29||1.575 in||1.969 in||40.0 mm||50.0 mm|
|XDL-30||1.575 in||2.000 in||40.0 mm||50.8 mm|
|XDL-31||1.750 in||2.000 in||44.5 mm||50.8 mm|
|XDL-32||2.000 in||2.250 in||50.8 mm||57.1 mm|
|XDL-33||1.890 in||2.283 in||48.0 mm||58.0 mm|
|XDL-34||1.969 in||2.362 in||50.0 mm||60.0 mm|
|XDL-35||2.250 in||2.500 in||57.1 mm||63.5 mm|
|XDL-36||2.165 in||2.559 in||55.0 mm||65.0 mm|
|XDL-37||2.500 in||2.750 in||63.5 mm||69.8 mm|
|XDL-38||2.362 in||2.756 in||60.0 mm||70.0 mm|
|XDL-39||2.561 in||2.956 in||65.0 mm||75.1 mm|
|XDL-40||2.750 in||3.000 in||69.8 mm||76.2 mm|
|XDL-41||2.675 in||3.150 in||67.9 mm||80.0 mm|
|XDL-42||3.125 in||3.500 in||79.4 mm||88.9 mm|
|XDL-43||3.250 in||3.500 in||82.5 mm||88.9 mm|
|XDL-44||3.650 in||4.000 in||92.7 mm||101.6 mm|
A common use for an alumina tube is in industrial applications where high temperature resistance is required. Its durability has made it a popular component for many industries such as the manufacture of furnaces, heat exchangers, laser tubes, and corona treater tubing.
The extreme hardness, density, and strength of alumina ceramic tubing has made it a perfect choice for processes that involve mixed acids, bromine, halogens, and other aggressive or corrosive substances. In the heat exchanger industry, its qualities and characteristics make it able to absorb and dissipate heat to protect electrical coils or other equipment.
The outstanding durability of alumina ceramic tubing has made it an ideal material for the heating industry. Heaters manufactured with it are safer than electric ones since they reach a preset temperature and maintain it. The resistance to higher temperatures has made it an essential part of temperature measuring devices and temperature control equipment.
Our alumina ceramic tubes are exported to USA, Canada, Europe, and South America and Southeast Asia.
Accept any repair of the product, help to improve technology for customer. And also provide long-term technical help and support for you.