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Basic Info.
Model NO.
Customized
Product Name
Ceramic Tubes
Forming Methods
Extrusion, ISO Pressed, Dry Pressed
Purity of Material
Range From 40% to 99.8%
Color
White, Ivory, Pink, Black
Density
Over 3.65g/cm3
Shape
Round, Square, Oval, Half Tube
Norminal Tolerance
1% of Dimensions
Certificate
RoHS, Reach, ISO9001:2015
Features
Wear Resistance, Insulation
Transport Package
Individual Packaging
Specification
Max. OD to be 800mm
Trademark
JingHui
Origin
China
HS Code
8547100000
Production Capacity
5000000/Month
Product Description
High-Temperature Resistant Customized Ceramic Tube Sleeve Bushing for Furnace 
Main characteristics of alumina ceramic tubes 
The Description of alumina ceramic tubes
Alumina(Aluminum Oxide, Al2O3) is the most extensively used advanced ceramic material due to its outstanding property characteristics and cost-effective advantage. As with the purity increases, both wear resistance and corrosion resistance also increases, so alumina are grouped together based on purity levels, including 75% alumina, 85% alumina, 90% alumina, 95% alumina, 99% alumina, 99.5% alumina, 99.8% alumina, 99.9% alumina.
Alumina ceramic tubes are generally used as a kind of standard protection part, so our facility has many selections of stocks. Our vast, readily available inventory allows us to supply our customer's ceramic tube needs immediately, even for hard-to-find or specialty products. Aluminas are used in a variety of general-purpose applications, and their grade is chosen based on the application environment. Additionally, different purity alumina can be formulated in our factory if needed for more demand applications 
2. With over 12 years of manufacturing experience of OEM, ODM
3. The rigorous and complete quality control system, including IQC, IPQC, OQC, and QA, also CPK, AQL
4. Support special and custom-made needs, including prototyping and R&D cases, or serial massive demands.
Q2.When can I get the price after sending the inquiry?
A: We regularly quote within 24 hours after we get your inquiry.If you are in urgent need of getting the price,
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q3.How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q4.How to ensure quality in your factory?
A: The strict quality-control will be done in the production line, including IQC, IPQC, QA, OQC,
Also both CKP, AQL are regularly used in production.
Q5. Are you a factory or trading company?
A: We are a professional manufacturer. You are welcome to visit our factory and cooperate with us.
1. Material: Alumina, Zirconia, Silicon nitride, Aluminum nitride optional
2. Forming methods: Extrusion, Dry pressed, CIM, ISO pressed
3. Dimensional capability: ID with min.1mm, OD with max .800mm
4. Dimensional tolerance: OD with 0.005mm, ID with 0.01mm
5. Surface treatment: polished, glazed, or metalized
6. Secondary processing: CNC machining, lapping, threaded, drilling, grinding, precision laser cutting
7. Types: Round tubes, square tubes, tubes with multiply holes
2. Forming methods: Extrusion, Dry pressed, CIM, ISO pressed
3. Dimensional capability: ID with min.1mm, OD with max .800mm
4. Dimensional tolerance: OD with 0.005mm, ID with 0.01mm
5. Surface treatment: polished, glazed, or metalized
6. Secondary processing: CNC machining, lapping, threaded, drilling, grinding, precision laser cutting
7. Types: Round tubes, square tubes, tubes with multiply holes
Main characteristics of alumina ceramic tubes
1. High-temperature resistance, up to 2000ºC in the vacuum atmosphere
2. Outstanding wear resistance, over 276 times in comparison with traditional stainless steel
3. Great mechanical properties, offers diamond-like hardness to be HRA85
4. Exceptional corrosion resistance, it can withstand various strong acid and alkali, like HCL, H2SO4
5. Extraordinary electrical insulation, it always used in various high voltage, high-current application
6. High-precision dimensions with ideal fitting relationship
2. Outstanding wear resistance, over 276 times in comparison with traditional stainless steel
3. Great mechanical properties, offers diamond-like hardness to be HRA85
4. Exceptional corrosion resistance, it can withstand various strong acid and alkali, like HCL, H2SO4
5. Extraordinary electrical insulation, it always used in various high voltage, high-current application
6. High-precision dimensions with ideal fitting relationship
The Description of alumina ceramic tubes
Alumina(Aluminum Oxide, Al2O3) is the most extensively used advanced ceramic material due to its outstanding property characteristics and cost-effective advantage. As with the purity increases, both wear resistance and corrosion resistance also increases, so alumina are grouped together based on purity levels, including 75% alumina, 85% alumina, 90% alumina, 95% alumina, 99% alumina, 99.5% alumina, 99.8% alumina, 99.9% alumina.
Alumina ceramic tubes are generally used as a kind of standard protection part, so our facility has many selections of stocks. Our vast, readily available inventory allows us to supply our customer's ceramic tube needs immediately, even for hard-to-find or specialty products. Aluminas are used in a variety of general-purpose applications, and their grade is chosen based on the application environment. Additionally, different purity alumina can be formulated in our factory if needed for more demand applications
Remark:
We are dealing with a variety of advanced ceramic tubes in a selection of raw materials, mainly including alumina, zirconia, silicon nitride, aluminum nitride, and silicon carbide, and so on.Technical Datasheet of advanced ceramic materials
| General | Properties | Unit | 99.5% Al2o3 | 99% Al2O3 | 96% Al2O3 | Steatite | YTPZ ZrO2 | SiC |
| Mechanical | Volume Density | g/cm 3 | ≥3.90 | ≥3.85 | ≥3.65 | ≥2.70 | ≥6.0 | ≥3.13 |
| Hardness | HRA | 1700 | 1700 | 1500 | 800 | 1300 | 2500 | |
| Porosity | % | 0 | 0 | 0 | 0 | 0 | 0 | |
| Compressive Strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥551 | ≥1990 | ≥ 2200 | |
| Bending Strength | Mpa | ≥379 | ≥338 | ≥320 | ≥190 | ≥1200 | ≥400 | |
| Elastic Modulus | Gpa | 370 | 350 | 303 | 110 | 210 | 400 | |
| Thermal | Thermal Conductivity | W/m.K | 30 | 29 | 24 | 2.5 | 3 | 120~150 |
| Coefficient of Thermal Expansion | 1*10 -6 m/k | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 7.7~8.0 | 8.0~9.5 | 4 | |
| Electrical | Insulation Breakdown | KV/mm | 19 | 18 | 18 | 10 | 17 | - |
| Volume Resistivity | Ohm.Cm | >1*1014 | >1*1014 | >1*1014 | >1*1013 | >1*1011 | 5*10 6 |
Our advantage and strength
1. Own in-house comprehensive types of manufacturing equipment2. With over 12 years of manufacturing experience of OEM, ODM
3. The rigorous and complete quality control system, including IQC, IPQC, OQC, and QA, also CPK, AQL
4. Support special and custom-made needs, including prototyping and R&D cases, or serial massive demands.
Q1: Is it available to produce customized products?
A: We support custom-made alumina ceramic tubes as per different dimensions, designs, surface treatment.Q2.When can I get the price after sending the inquiry?
A: We regularly quote within 24 hours after we get your inquiry.If you are in urgent need of getting the price,
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q3.How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q4.How to ensure quality in your factory?
A: The strict quality-control will be done in the production line, including IQC, IPQC, QA, OQC,
Also both CKP, AQL are regularly used in production.
Q5. Are you a factory or trading company?
A: We are a professional manufacturer. You are welcome to visit our factory and cooperate with us.