99.3% High Purity Alumina Insulation 1800c Ceramic Rods
China 99.3% High Purity Alumina Insulation 1800c Ceramic Rods, Find details about China Alumina Ceramic Stick, Alumina Ceramic Rods from 99.3% High Purity Alumina Insulation 1800c Ceramic Rods
WITH HIGH DENSITY&REFRACTORINESS, GOOD CORROSION RESISTENCE, MECHANICAL CAPACITY ETC PROPERTIES,RECTANGLE CERAMIC RODS ARE WIDELY USED IN CHEMICAL FIBER, TEXTILE AND CHEMICAL ETC INDUTRIES.
ALL WE PRODUCTS CAN PASS THE GERMAN AND JAPAN STANDARD WHICH IS THE BEST QUALITY IN THIS FIELD.
WE PASS DIN43724/DIN43725/DIN40680.
| 0.8-1.5 | 2-2.5 | 3-5.5 | 6-7.5 | 8-8.5 | 9-10.5 | 11-12.7 | |
| 1000mm | 4.82$/pcs | 4.01$/pcs | 3.21$/pcs | 4.01$/pcs | 4.82$/pcs | 6.42$/pcs | 9.64$/pcs |
| 1250mm | 6.42$/pcs | 5.62$/pcs | 4.82$/pcs | 5.62$/pcs | 7.23$/pcs | 8.83$/pcs | 12.85$/pcs |
| 1500mm | / | 8.83$/pcs | 8.83$/pcs | 10.44$/pcs | 12.04$/pcs | 13.65$/pcs | 17.66$/pcs |
| 1750mm | / | / | 12.04$/pcs | 13.65$/pcs | 16.86$/pcs | 19.27$/pcs | 28.10$/pcs |
| NAME | CONTENT(%) |
| Al2O3 | 99-99.3(99.5) |
| SiO2 | 0.3-0.5 |
| CaO+MgO | 0.2-0.3 |
| K2O+Na2O | 0.2-0.35 |
| Fe2O3 | <0.1 |
| OTHER | <0.05 |
NO. | Property | Unit | Alumina |
1 | Al2O3 | % | >99.3 |
2 | SiO2 | % | - |
3 | Density | g/cm3 | 3.88 |
4 | Water absorption | % | 0.01 |
5 | Cold compressive strength | MPa | 350 |
6 | 20ºC leakage rates | Torr/L.sec | <10-11 |
7 | Twisting in high temperature | mm | 0.2 allowed in 1600ºC |
8 | Bonding in high temperature |
| not bonded in 1600ºC |
9 | 20-1000ºC coefficient ofthermalexpansion | mm.10-6/ºC.m | 8.2 |
10 | Thermal conductivity | W/m.k | 25 |
11 | Electric insulation strength | KV/mm | 20 |
12 | 20ºCdirect current insulation resistance | Ohm/cm | 1014 |
13 | High-temperature insulation resistance | 1000ºC MΩ | ≥0.08 |
1300ºC MΩ | ≥0.02 | ||
14 | Thermal shock resistance |
| 4 times not cracked in 1550ºC |
15 | Maximum working temperature | ºC | 1800 |
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