Alumina Ceramic Tube
GORGEOUS alumina tubes are made of high-quality alumina and can be customized in a variety of purities and sizes.
High Quality Alumina Tube
Custom Processing Suppliers
Alumina Tube Description
GORGEOUS provides complete manufacturing services for alumina ceramic tubes. We are good at various processing technologies such as isostatic pressing, slip casting, dry pressing, CNC precision machining, polishing and sintering, ensuring that each product meets the high standards of the industry and meets the precise requirements of customers.
Alumina ceramic tubes play a vital role in high-temperature electric furnaces, thermocouple protection, semiconductor equipment, chemical analysis instruments, gas delivery systems and other fields. They are not only hard and resistant to high temperatures, but also have excellent insulation properties, corrosion resistance and dimensional stability. In addition, GORGEOUS can also customize alumina tubes according to your specific requirements. Whether it is a complex porous structure or an ultra-thin wall thickness or a special-shaped structure design requirement, we can provide the most suitable solution.
If your upcoming project requires alumina ceramic tubes, please feel free to contact us to find out how we can meet your ceramic tube manufacturing needs.
Supply Various Shapes of Alumina Ceramic Tubes
Provide Customers with Customized Solutions According to Their Needs
Supply Alumina Tubes for Various Purposes
GORGEOUS can customize various types of alumina tubes for customers, including: protection tubes, insulation tubes, high-temperature furnace tubes, filter tubes, etc., to meet the needs of various industries.
Nonporous Alumina Ceramic Tube
Standard alumina tube, high purity, used in electronic semiconductors, vacuum chambers, thermal insulation layers, etc. -
Alumina Tubular Filtration Tube
The Al2O3 membrane wall is covered with micropores and is used to filter macromolecular substances in the food, chemical and other industries.
Alumina Furnace Tube
The furnace tube has extremely strong heat resistance and is mainly used in extreme high temperature equipment such as kilns and high temperature furnaces. -
Alumina Thermocouple Protection Tube
Usually closed at one end, it provides thermal protection and accurate measurement for thermocouples and precision instruments.
Advantages of Alumina Ceramic Tube
High Hardness
Insulation
Corrosion Resistance
High Temperature Resistance
Product Parameters
| Property | Unit | AL2O3 99.7 | AL2O3 99.5 | AL2O3 99 | AL2O3 95 |
| Purity | — | 99.7% | 99.5% | 99% | 95% |
| Density | g/cm3 | 3.92 | 3.9 | 3.8 | 3.7 |
| Bending Strength | MPa | 375 | 370 | 340 | 304 |
| Compressive Strength | MPa | 2450 | 2300 | 2250 | 1910 |
| Elastic Modulus | GPa | 380 | 370 | 330 | 330 |
| Fracture Toughness | MPam1/2 | 4.5 | 4.3 | 4.2 | 3.8 |
| Hardness | HRA | 91 | 91 | 90 | 89 |
| Vickers Hardness | HV1 | 1600 | 1550 | 1450 | 1400 |
| Thermal Expansion Coefficient | 10- 6 K-1 | 7.8 | 7.8 | 7.7 | 7.5 |
| Thermal Conductivity | W/mk | 32 | 32 | 25 | 25 |
| Thermal Shock Stability | △T.℃ | 220 | 220 | 200 | 200 |
| Maximum Operating Temperature | ℃ | 1750 | 1750 | 1700 | 1500 |
| Volume resistance at 20℃ | Ω·cm | 1015 | 1015 | 1014 | 1014 |
| Dielectric Strength | KV/mm | 22 | 20 | 16 | 15 |
| Dielectric Constant (room temperature) | / | 10 | 11 | 11.5 | 11 |
| MHz Dielectric Loss Factor | tan δ | 1×10-3 | 1×10-3 | 3×10-3 | 3×10-3 |
Alumina Ceramic Tube Use
High Temperature Electric Furnace
Alumina ceramic tubes can be used as furnace tubes in heating zones or reaction zones to load powders, particles or small samples for high temperature sintering, annealing, calcining and other heat treatments under vacuum or atmosphere protection.
Commonly used in: tubular resistance furnace, tubular atmosphere furnace, rotary tube furnace, laboratory CVD equipment, etc.
Thermocouple Protection
Alumina thermocouple protection tubes can protect thermocouple wires or temperature sensors from corrosion, oxidation or mechanical damage.
Commonly used in: steel smelting, high temperature kilns, casting furnaces, glass melting furnaces and other continuous high temperature environments.
Insulation Components
Alumina insulating tubes are used as insulation and heat-insulating supports for heating wires and electrodes in electric heating devices.
Commonly used in: industrial heaters, induction furnaces, high temperature electric furnaces.
Transportation Pipeline
Alumina tubes are used as lining tubes or main delivery tubes in the transportation of corrosive gases or high-purity gases to prevent metal tubes from being corroded or contaminated. They can be used to transport high-purity gases such as hydrogen, nitrogen, and ammonia in semiconductor and photovoltaic production lines.
Commonly used in: Corrosion-resistant pipelines, chemical pipelines.
Mechanical Wear Parts
Alumina tubes can be used as wear-resistant guide sleeves, sliding bearings or seals. They are used to protect metal parts from wear in chemical and mining equipment.
Commonly used in: Mechanical parts, wear-resistant tubes, protective tubes.
Are You Worried About the MOQ?
Special minimum order quantity (MOQ) of one piece is available to meet customers with smaller needs. Take the first step and experience our services.
Why Choose GORGEOUS?
GORGEOUS focuses on quality control to ensure that every alumina tube product meets customer requirements. Our quality inspection process is strict and meticulous. From raw materials to ceramic products, every step of the process is precisely inspected and tested.
In addition, GORGEOUS is a factory that has passed IATF16949:2016 automotive industry quality management system certification ISO9001:2015 quality management certification, which can provide customers with the best customized services.
Our Pass Successes Testimonials
GORGEOUS's ceramics are reasonably priced and of excellent quality. We have maintained a long-term and good cooperation.
Neeshaan el-salih
GORGEOUS products fully meet my high standards in terms of manufacturing process. Both the precision and appearance are great, and they are completely in line with the application of our factory.
Emily Johnson
GORGEOUS gave us a very pleasant service experience. Their response speed was very fast and my goods arrived safely.
Sarah Wilson
FAQs
What are the temperature resistance capabilities of alumina tubes?
We offer alumina tubes for continuous use up to around 1600°C and intermittent use up to 1700°C, depending on purity and structural design.
How strong and chemically resistant are Al2O3 tubes?
Alumina ceramic tubes have very high hardness, good wear resistance, and high bending strength. At the same time, they have excellent corrosion resistance to acids, alkalis, and most corrosive chemical media at high temperatures.
What are the electrical insulation properties of aluminum oxide tubes?
Alumina is an excellent electrical insulator with a volume resistivity exceeding 10¹⁴ Ω·cm, making it particularly suitable for applications requiring high temperature insulation performance.
What sizes and customization options are available for aluminum oxide tubes?
We can provide a variety of standard and customized specifications, including single-hole, double-hole and multi-hole tubes, and the outer diameter, inner diameter and length can be adjusted according to needs. At the same time, we can also customize single-end closed ceramic tubes, flange tubes and various special-shaped parts to meet your design needs.
How should aluminum oxide tubes be handled and maintained to ensure longevity?
In daily use, severe temperature shocks and mechanical collisions should be avoided; keep them dry and clean during storage, and be handled with care to prevent bumps; check regularly and replace worn or damaged pipes in time.
Do you offer custom sizes and shapes?
Yes, we are good at customized production. We can customize ceramic tubes of different lengths, diameters, wall thicknesses and complex structures according to the drawings or requirements provided by customers.
What is the purity level of the alumina used in these tubes?
We mainly use ≥99% high purity alumina, and we can also provide materials with different purities such as 95%, 96%, and 99.7% according to demand.
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