Alumina Ceramic Main Features
1. High hardness
2. High heat resistance
3. Good wear resistance
4. High electrical resistivity
5. High corrosion resistance
Product Introduction
Product description
Alumina Ceramic have a high melting point, high hardness,although mechanical strength is reduced at temperatures above 1000 C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced. So it is widely used for many mechanical parts which request very high temperature.
Shengda Ceramic provide all kinds of 2, 4, 6 holes alumina ceramic tubes. Also the rings, rods, tubes, plates, inserts, bushing, sleeves, blocks, plunger and so on. Any dimension requirement, please contact us.
Technical Parameters
Performance | |||||
Item | Index | Unit | Steatite | 95 Al2O3 | 99 Al2O3 |
Physical Characteristics | Bulk density | g/cm 3 | 2.7 | 3.6 | 3.6 |
Water absorption | % | 0 | 0 | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 145 | 320 | 340 |
Hardness Vickers | Gpa | 5.7 | 12.2 | 13.5 | |
Elastic modulus | Gpa | 120 | 280 | 320 | |
Thermal Characteristics | Poisson's ratio | - | 0.21 | 0.22 | 0.23 |
Expansion coefficient | 10-6/℃ | 7.9 | 7.1 | 7.2 | |
Thermal conductivity | w/(m . k) | 2.5 | 16 | 24 | |
Specific Heat | 10-3 J/ (kg * K) | 0.75 | 0.78 | 0.78 | |
Electrical Characteristics | Dielectric constant | - | 6.2 | 9 | 9.4 |
Dielectric loss angle | *10 -4 | 18 | 15 | 5 | |
Dielectric strength | *10 6 V/m | 18 | 12 | 15 | |
Production process
Features
1) A variety of specifications available.
2) Satisfy various technical request
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) High strength
6) Used in all electric products, electric heating products and wear resistant machinery parts.
7) OEM, ODM and OBM are welcomed
Production equipment
Our advantage
● Certificates: ISO & SGS
● OEM & ODM: OEM & ODM service is available
● Strict testing procedures :Meeting the requirements of the product design and process, providing reliable testing data.
● Short Delivery time:If less than 1000 pieces, it only takes around 5 days. We also stock some standard-sized products, if you need urgently, we can delivery very soon.
● Best ex-factory price
● Worldwide customers
● Customized according to needs
● Continuous research and development of new products
● Customer service:If you find some quality problem, please contact us, we’ll deal with it as soon as possible.
Our certificate
Packaging and shipping
Our customers have a wide range of processing choices for transportation mode.
● By Express (FedEx, UPS, DHL, TNT, EMS, etc...)
--- Advantage: Fast ( takes about 7 - 10 days in the delivery ), door to door
--- Disadvantage: A little expensive
● By Air Transportation
--- Advantage: Fast ( takes about 8 - 12 days ), a little cheaper than Express.
--- Disadvantage: You need to take the goods from the airport by yourself.
● By Sea ( Ocean ) Transportation
--- Advantage: Much cheaper than Express or Air transportation.
--- Disadvantage: Slow and you need to take the goods from your destination port by yourself.
Request A Quote Today
Whether is a product enquiry or technical help, please send messager here, our team will respond within 8 hours.
Subject : Customized Heat Resistant Alumina Ceramic Spacer
Our Partners
If you have any questions or need help, feel free to contact with our team.
Phone
+86 183 5151 6951
Location
Qianluo Village, Dingshu Town, Yixing City, Jiangsu Province, China
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