Al2O3 99% Alumina Oxide Ceramic Tube Corrosion Resistance Hardness Wear
Alumina Ceramic TUBE
| Performance | |||||
| Item | Index | Unit | Steatite ceramic | 95 Al2O3 | 96 Al2O3 |
| Physical Characteristics | Bulk density | g/cm3 | 2.7 | 3.2 | 3.6 |
| Water absorption | % | 0 | 0 | 0 | |
| Mechanical Characteristics | Flexural strength | Mpa | 145 | 320 | 340 |
| Hardness Vickers | Gpa | 5.7 | 12.2 | 13.5 | |
| Poisson’s ratio | - | 0.21 | 0.22 | 0.23 | |
| Thermal Characteristics | Thermal conductivity | w/(m.k) | 2.5 | 16 | 24 |
| Electrical Characteristics | Dielectric constant(1MHZ) | - | 6.2 | 9 | 9.4 |
Advantages :
1). Excellent insulation ,security , long working life .
2). Precise grinding and polishing.
3). Excellent heat radiation, small size ,more environmental and energy-efficient .
4). good thermal conductivity
5). large specific heat capacity
6). low pressure drop
7). good heat-shock resisting ability
8). Working temperature: 600℃-1200℃
Application :
1). Gas cooker,Water heater,Gas oven, Gas boiler,Air-conditioning and so on.
2). As ceramic parts of flexible pad and channel heaters at operations of pre and postweld heat treatment; Welding process, stress-relieving, pre-heating & post heating, other resistance-heating environment
3). halogen lamps, high and low pressure uv lamps, mercury lamps, uv lamp holders and heating tubes.
4). high-power electrical applicance and all kinds of insulation device.
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