- Product Details
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Quick Details
-
Brand Name:
-
Kerui refractory
-
Product name:
-
Corundum tube
-
Aluminum oxide content:
-
95%,99%
-
Colour:
-
Ivory white, white
-
Airtightness:
-
Not breathable
-
Density:
-
3.72g/cm3,3.8g/cm3
-
Maximum operating temperature:
-
1400℃,1600℃
-
Water absorption rate:
-
≤0.2
-
MOQ:
-
100pcs
-
Certificate:
-
ISO9001
-
Advantage:
-
Anti Corrosion
Quick Details
-
Material:
-
Alumina Ceramic
-
Place of Origin:
-
Henan, China
-
Model Number:
-
KR95/KR99
-
Brand Name:
-
Kerui refractory
-
Product name:
-
Corundum tube
-
Aluminum oxide content:
-
95%,99%
-
Colour:
-
Ivory white, white
-
Airtightness:
-
Not breathable
-
Density:
-
3.72g/cm3,3.8g/cm3
-
Maximum operating temperature:
-
1400℃,1600℃
-
Water absorption rate:
-
≤0.2
-
MOQ:
-
100pcs
-
Certificate:
-
ISO9001
-
Advantage:
-
Anti Corrosion
Product Description
Corundum tubes are high-performance ceramic components made primarily from aluminum oxide (Al
2
O
3
), which is also known as corundum. These tubes possess excellent mechanical strength, wear resistance, and chemical stability, making them ideal for use in harsh environments and under extreme conditions.
Specification
|
Characteristic
|
Unit
|
AL95
|
AL99
|
|
Aluminum oxide content
|
/
|
95%
|
99%
|
|
Colour
|
/
|
Ivory white, white
|
Ivory white
|
|
Airtightness
|
/
|
Not breathable
|
Not breathable
|
|
Density
|
g/cm
3
|
3.72
|
3.8
|
|
Hardness
|
Moh's hardness
|
8.8
|
9
|
|
Water absorption rate
|
/
|
≤0.2
|
≤0.2
|
|
Bending strength(20 ℃)
|
Mpa
|
304
|
340
|
|
Compressive strength (20 ℃)
|
Mpa
|
1910
|
2210
|
|
Thermal expansion coefficient (25 ℃ to 800 ℃)
|
10
-6
/℃
|
7.6
|
7.6
|
|
Insulation strength (5mm thickness)
|
AC-kv/mm
|
10
|
10
|
|
Dielectric loss 25℃@1MHz
|
/
|
0.0004
|
0.0006
|
|
Dielectric constant 25℃@MHz
|
/
|
9.2
|
9.5
|
|
Volume electronegativity (20 ℃)(300 ℃)
|
Ω·cm
3
|
>10
14
2*10
11
|
>10
14
4*10
11
|
|
Maximum operating temperature
|
℃
|
1400
|
1600
|
|
Thermal conductivity (25 ℃)
|
W/m·K
|
20
|
34
|
Key Features
1.High Temperature Resistance: With a melting point exceeding 2000°C, corundum tubes can withstand severe thermal stress without deformation or degradation.
2.Excellent Chemical Inertness: Corundum's low reactivity with most chemicals makes it resistant to corrosion and attack by acids, alkalis, and molten metals.
3.Low Thermal Conductivity: They provide excellent thermal insulation, reducing energy loss and maintaining process efficiency in heat transfer operations.
4.Precision Dimensional Stability: Manufactured through advanced ceramic forming techniques, corundum tubes offer tight tolerances and precise dimensions.
5.Wear Resistant: The hardness of corundum means these tubes exhibit exceptional wear resistance, reducing maintenance needs and extending service life.
Applications
Corundum tubes, due to their unique combination of exceptional properties, find wide applications in various industries that require high-temperature stability, chemical inertness, and wear resistance. Here are some key applications:
1.High-Temperature Furnaces: Corundum tubes are used as linings or components in high-temperature furnaces for heat treatment processes such as annealing, sintering, and firing in the ceramics, glass, metallurgical, and electronics industries.
2.Heat Exchangers: In thermal processing systems where aggressive chemicals or high temperatures are involved, corundum tubes serve as robust and efficient heat exchanger elements, transferring heat without degrading under extreme conditions.
3.Catalytic Reactors: The chemical inertness and temperature stability make them suitable for use as catalyst supports or reaction chamber liners in petrochemical plants, pharmaceutical manufacturing, and other chemical processing equipment.
4.Piping Systems: For conveying corrosive fluids or abrasive slurries at elevated temperatures, corundum tubes provide a durable solution that minimizes corrosion, erosion, and wear.
5.Laboratory Equipment: They are utilized in laboratory apparatuses that require resistance to chemical attack and high heat, including crucibles, combustion tubes, and other specialty items.
6.Insulation Components: As an excellent insulator, corundum tubes can be used in insulation jackets for electric heating elements, providing protection from direct contact with flammable materials.
7.Semiconductor Industry: Due to its purity and electrical insulation properties, corundum tubes are employed in semiconductor manufacturing processes where contamination control is critical.
KERUI Refractory
Zhengzhou Kerui (Group) Refractory Co., Ltd.
is located in China’s largest refractory industry zone: Chaohua Town, Xinmi City, Henan Province.
KERUI Refractory strives to provide top-notch solutions and services for high-temperature industries worldwide, including iron steel, aluminum, power, glass, boiler, non-ferrous, cement industry, etc.
KERUI has a diverse and extensive global customer base, with clients located in various regions around the world. our high-quality products and services have earned us a reputation for excellence, making us a preferred choice for many industries.
Our commitment to quality and customer satisfaction has allowed us to build strong relationships with clients in North America, South America, Europe, Asia, Africa, and beyond. We continually strive to exceed our customers' expectations, delivering reliable products and exceptional service at all times.
We work closely with our customers to understand their unique needs, providing tailored solutions that meet their specific requirements.
KERUI Refractory strives to provide top-notch solutions and services for high-temperature industries worldwide, including iron steel, aluminum, power, glass, boiler, non-ferrous, cement industry, etc.
KERUI has a diverse and extensive global customer base, with clients located in various regions around the world. our high-quality products and services have earned us a reputation for excellence, making us a preferred choice for many industries.
Our commitment to quality and customer satisfaction has allowed us to build strong relationships with clients in North America, South America, Europe, Asia, Africa, and beyond. We continually strive to exceed our customers' expectations, delivering reliable products and exceptional service at all times.
We work closely with our customers to understand their unique needs, providing tailored solutions that meet their specific requirements.
With feasible solutions and considerate service, Kerui has dece loped stable cooperation relationships with global customers.
Our cooperation is based on a common win-win goal. Together with Kerui, we can create innovative solutions and realize your success in high temperature industries.
Our cooperation is based on a common win-win goal. Together with Kerui, we can create innovative solutions and realize your success in high temperature industries.
FAQ
1. Are we a manufacturer or supplier?
We have surely been a reliable manufacturer since 2004.
2. OEM, ODM?
Most certainly, we can also customizable to meet unique requirements, for instance, indicators, sizes, etc.
3. Project questions, such as kiln maintenance, available for consultation?
Yes, PLEASE, We have experienced product technical consultants to communicate online.
4. How do you conduct quality testing on your products?
We strictly follow the quality management system, and we have a logistics chemistry laboratory. Here are some of the ways we conduct quality testing:
1) Raw material inspection
2) In-process inspection
3) Finished product inspection
4) Performance testing
5) Stability testing
5. How can I get a sample?
Sure, before your first purchase order, you can get a free test sample.
We have surely been a reliable manufacturer since 2004.
2. OEM, ODM?
Most certainly, we can also customizable to meet unique requirements, for instance, indicators, sizes, etc.
3. Project questions, such as kiln maintenance, available for consultation?
Yes, PLEASE, We have experienced product technical consultants to communicate online.
4. How do you conduct quality testing on your products?
We strictly follow the quality management system, and we have a logistics chemistry laboratory. Here are some of the ways we conduct quality testing:
1) Raw material inspection
2) In-process inspection
3) Finished product inspection
4) Performance testing
5) Stability testing
5. How can I get a sample?
Sure, before your first purchase order, you can get a free test sample.
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