Customization: | Available |
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Application: | Electrical Insulation, High-Temperature Furnaces, Medical Devices |
Ceramic Tube & Rod: | Ceramic Tube |
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Material options | Alumina ( purity from 40% to 99.8%), Zirconia, Silicon carbide, Silicon nitride |
Forming methods | Extrusion, Dry pressed, Hot pressed, Ceramic Injection molding, ISO pressed |
Dimensional capability | The inner diameter can be min.1mm, the outer diameter can max .800mm |
Dimensional tolerance | The OD to be 0.005mm, the ID to be 0.01mm, the length to be 0.001mm |
Surface treatment | External and internal surface to be polished, glazed, or metalized |
Secondary processing | CNC machining, lapping, threaded, drilling, grinding, precision laser cutting |
The main characteristics of alumina ceramic bush
1. Outstanding wear resistance, over 276 times in comparison with traditional stainless steelThe Description of alumina ceramic bush
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.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 |
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FAQs (Frequently Asked Questions)
Q1: Is it available to produce customized products?