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[China]
Trade Verify
Address: Dagang Village,Dingshu Town, Yixing City,Jiangsu Province, China
Contact name:Bruce
Yixing City Kam Tai Refractories Co.,ltd |
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Verified Suppliers
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Features of alumina ceramic tube
1) A variety of specifications available.
2) Satisfy various technical request
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) Stiffness texture
6) Used in all electric products and electric heating products
7) OEM, ODM and OBM are welcomed
| Property | Units | ||||
| Al2O3 Content | % | 96 | 98 | 99.5 | 99.7 |
| Density | g / cm3 | 3.70 | 3.80 | 3.90 | 3.92 |
| Color | - | White | White | Ivory | Ivory |
| Compressive Strength @ 25 C | Mpa | 2229 | 2091 | 2512 | 2350 |
| Tensile Strength @ 25 C | MPa | 200 | 200 | 248 | 252 |
| Flexural Strength @ 25 C | MPa | 331 | 276 | 324 | 320 |
| Elastic Modulus @ 25 C | GPa | 290 | 331 | 366 | 380 |
| Hardness : Knoop Rockwell | (Gpa) Kg/mm2 R45N | (11.7) 1196 79 | (12.5) 1276 77 | (14) 1428 85 | (15) 1510 90 |
| Thermal Conductivity @ 25 C | W / m-Deg K | 20.8 | 28.1 |
30.7 | 31.6 |
| Coefficient of Thermal Expansion @ 25-1000 C | 1 X 10-6 / Deg C | 7.9 | 8.5 | 8.1 | 8.0 |
| Specific Heat @ 25 C | cal / g / Deg C | .184 | .184 | .182 | .180 |
| Maximum Working Temp. | Deg C | 1650 | 1650 | 1700 | 1700 |
| VolumeResitivity @25C @700 C | ohm-cm ohm-cm | 1 X 10-13 1 X 10-8 | 1X 10-13 2.2 X 10-9 | 1 X 10-13 6 x 10-7 | 1 X 10-13 6 x 10-7 |
| Dielectric Strength (@Thickness) 100Mils | ac volts per mil | 350 | 340 | 335 | 330 |
| Dielectric Constant 1Mhz @25C | e' / eo | 8.6 | 9.4 | 9.7 | 10.0 |
| Dissipation Factor 1 Mhz @25C | Tan Delta | .0004 |
.0003 |
.0003 | .0002 |
4.Application of alumina ceramic tube
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.
