| Customization: | Available |
|---|---|
| Feature: | Chemical Corrosion Resistance, Corrosion Resistance, Good Abrasion Resistance, Good Insulation Performance, High Mechanical Strength, High Melting Point, Thermal Shock Resistance |
| Production Process: | Sintering Method |
|
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Customized high-temperature 95%/99% alumina ceramic tubes
Alumina ceramic tubes are mainly used to separate the different poles of the temperature measuring element, to avoid interference between the two poles or contact short circuit, so that the temperature measurement is accurate. We have a variety of high-purity alumina and mullite insulation tubes in stock, including single bore, double bores, four bores or porous insulation tubes. This type of tubes is particularly suitable for harsh environments, and can be used as insulation tubes, feed conductors, spacers, etc. And the customized requirements will be accepted
Regular dimension: Alumina insulated tubes, can be produced a single hole , double ,three and four-holes.
Application equipment:
Vacuum atmosphere tube resistance furnace, energy saving box furnace, high temperature annealing muffle furnace, precision tube furnace, environmental protection and energy saving new type tube furnace, vacuum atmosphere tube furnace, etc.
Regular dimension: Alumina insulated tubes, can be produced a single hole , double ,three and four-holes.
| OD x ID(mm) |
Series&length |
OD x ID(mm) |
Series&length |
OD x ID(mm) |
Series&length |
|
0.7 x 0.3 |
99/997series |
7 x 4.5 |
95/99/997 series |
30 x 25 |
95/99/997 series |
|
0.8 x 0.4 |
8 x 4 |
40 x 30 |
|||
|
0.9 x 0.4 |
9 x 6 |
50 x 40 |
|||
|
1 x 0.5 |
10 x 4 |
60 x 50 |
|||
|
1.1 x 0.6 |
10 x 7 |
70 x 60 |
95/99/997 series |
||
|
1.2 x 0.6 |
12 x 4 |
80 x 70 |
|||
|
1.3 x 0.7 |
12 x 8 |
90 x 80 |
|||
|
1.4 x 0.8 |
14 x 4 |
100 x 90 |
|||
|
1.5 x 0.8 |
95/99/997 series |
14 x 10 |
110 x 100 |
||
|
2 x 1 |
15 x 11 |
120 x 110 |
|||
|
3 x 2 |
16 x 12 |
150 x 140 |
95/99/997 series |
||
|
4 x 3 |
18 x 14 |
200 x 190 |
|||
|
5 x 3.5 |
20 x 15 |
||||
|
6 x 4 |
25 x 19 |
Feature
1) Materials: 95% Al2O3, 99% Al2O3
2) Application: Used for all kinds of electric heating equipment and electric equipment, and textile machinery
3) Good smooth and high strength
4) A variety of specifications available
5) OEM, ODM and OBM are welcomed
Materials Physical and Chemical Index
| Item |
Unit |
AL99.7% |
AL99 |
AL95 |
|
Al2O3 content |
- |
99.7% |
99% |
95% |
|
Color |
- |
Ivory white |
Ivory white |
Ivory white,white |
|
Air tightness |
- |
airtight |
airtight |
airtight |
|
Density |
g/cm3 |
3.94 |
3.8 |
3.7 |
|
Straightness |
- |
2‰ |
2‰ |
2‰ |
|
hardness |
Moh's hardness |
9 |
9 |
8.8 |
|
Water absorption |
≤0.2 |
≤0.2 |
≤0.2 |
≤0.2 |
|
Flexural strength(20ºC) |
Mpa |
375 |
340 |
304 |
|
Compressive strength(20ºC) |
Mpa |
2300 |
2210 |
1910 |
|
Thermal expansion coefficient (25ºC-800ºC) |
105/ºC |
7.6 |
7.6 |
7.6 |
|
Insulation strength(thickness:5mm) |
AC-kv/mm |
10 |
10 |
10 |
|
Dielectric loss 25ºC@1MHz |
- |
<0.0001 |
<0.0006 |
<0.0004 |
|
Volume resistivity |
Ω·cm3 |
>1014 >1010 |
>1014 >1010 |
>1014 >1012 |
|
Long-term use temperature |
ºC |
1700 |
1600 |
1200 |
|
Thermal conductivity(25ºC) |
W/moK |
35 |
34 |
20 |
Our service
1. The inquiry will reply as soon as we can.
2. The samples will be supplied for free.
3. Competitive prices
4. The goods will be sent on time
5. Good pre-sales and after-sales service
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