| Place of Origin: | China |
|---|---|
| Brand Name: | YUBEI |
| Certification: | ISO9001 |
| Minimum Order Quantity: | 20pcs |
| Price: | Negotiate |
| Packaging Details: | carton or wooden case or pallet packing |
| Delivery Time: | 30 work days |
| Supply Ability: | 1000pcs one month |
| Product Name: | Alumina Ceramic Block | Material: | 99% Al2O3 |
|---|---|---|---|
| Dielectric Constant: | 10 | Thermal Conductivity: | 29W/mK |
| Density: | 3.85g/cm3 | Hardness: | 89HRA |
| Highlight: | Wear Resistant Alumina Ceramic Block,Industrial Ceramic Precision Parts |
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Supply Wear Resistant Alumina Ceramic Block Mechanical Industrial Ceramic
Alumina ceramic, also known as alumina or aluminum oxide(Al2O3), is an excellent electrical insulator and a widely used advanced ceramic material. Aluminum oxide ceramics are favored for good thermal conductivity and mechanical propeties, insulating capability, high hardness and temperature resistance. Based on the Al2O3 content, alumina can be categorized as 75% alumina, 85% alumina, 95% alumina, 99% alumina, 99.5% alumina, 99.7% alumina, and so on.
| Material | 95%, 99%, 99.5%, 99.7% AL2O3 |
| Size | Customize by drawings or samples |
| Delivery time | 20-30 days accordingly |
| FOB port | Shanghai port |
| Packing | Fragile proof packing, carton, wooden case, pallet |
Alumina is a well-known fine ceramic material for its chemical and physical stability.
Thermal properties: High heat resistance and high thermal conductivity.
| Properties | Item | Unit | 99% Alumina | 95% Alumina |
| Mechanical Property | Color | -- | Light Yellow | White |
| Mechanical Property | Density | g/cm3 | 3.85 | 3.6 |
| Mechanical Property | Bending Strength | MPa | 310 | 300 |
| Mechanical Property | Compressive Strength | MPa | 2400 | 2300 |
| Mechanical Property | Elastic Modulus | GPa | 340 | 320 |
| Mechanical Property | Fracture Toughness | MPam1/2 | 3-4 | 3-4 |
| Mechanical Property | Weber Coefficient | m | 12 | 12 |
| Mechanical Property | Vickers Hardness | HV0.5 | 1600 | 1400 |
| Thermal Property | Coefficient of Line Thermal Expansion | 10-6K-1 | 7-8 | 7-8 |
| Thermal Property | Thermal Conductivity | W/mK | 29 | 20 |
| Thermal Property | Thermal Shock Resistance( in water) | ΔT℃ | 200 | 250 |
| Thermal Property | Max Working Temperature | ℃ | 1600 | 1500 |
| Electrical Property | Volume Resistance at 20℃ | Ωcm | >1014 | >1014 |
| Electrical Property | Dielectric Strength | V/m | 15X106 | 15X106 |
| Electrical Property | Dielectric Constant | εr | 10 |
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1. Are you a factory?
Yes, we're a factory professinally producing industrial ceramics. Our main products are alumina ceramics, zirconia ceramics and sic ceramics.
2. What's the size of it?
Products are always customized according to drawings or samples. Diameter and height within 500mm are available.
3. What's the price for it?
It depends. Prices are caculated by the drawing size and structure.
4. What's the production process?
Our products are made mainly in cold isostatic pressing, dry pressing and hot press moulding technique.
5. How about the delivery?
Generally speaking, a ceramic production needs about 30 days to finish. Some special products maybe take a longer time. For some simple products, maybe 10-15 days is ok.
6. How's the packing?
The usual packing is cartons, wooden cases, or pallets. Ceramics are fragile products, will use some breakage-proof materials to protect them.
7. Can you do the finish maching?
Yes, we have lathes, grinding machines, milling machines, carves-milling machines to make sure products' accuracy.
8. Which is the nearest port?
Shanghai port is the nearest one from us. It takes about 2-3 hours to get to shanghai port.
