- Product Details
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Quick Details
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Brand Name:
-
DKJL
-
Product name:
-
ceramic tube
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Working temperature:
-
1550C
-
Al2O3:
-
99-99.5%
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Bulk density:
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2.4g/cm3
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Size:
-
Customers' Requests
-
Diameter tolerance:
-
0.4%
-
Raw material:
-
95%-99% Alumina Ceramic
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Straightness:
-
0.07%
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Maximum length:
-
5000mm
Quick Details
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Material:
-
Alumina Ceramic
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Place of Origin:
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Shandong, China
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Model Number:
-
Customer's Requirements
-
Brand Name:
-
DKJL
-
Product name:
-
ceramic tube
-
Working temperature:
-
1550C
-
Al2O3:
-
99-99.5%
-
Bulk density:
-
2.4g/cm3
-
Size:
-
Customers' Requests
-
Diameter tolerance:
-
0.4%
-
Raw material:
-
95%-99% Alumina Ceramic
-
Straightness:
-
0.07%
-
Maximum length:
-
5000mm
Dkjl Thermocouple Protection 99% Al2o3 Alumina Ceramic Tube / Pipe
The main material of ceramic pipe is Aluminium Oxide( Al2O3). The purity varies from 60%-99.7%, density from 3.0-3.9g/cm 3 , and working temperature from 1000-1700°C. It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance.
corundum ceramic tube features and advantage
1.Great mechanical strength
2.Low thermal conductivity
3.High heat resistance
4.High softening temperature
5.Small thermal expansion coefficient
6.Good cold-resistance heat-resistance
7.Resistance to acid and alkali corrosion
8.Long service life
corundum ceramic tube Technical Index
|
AL2O3% Composition |
Density (g/cm3) |
Flexural Strength (MPa) |
Thermal Conductivity
|
Dielectric Strength
|
Working Temp. |
|
60 |
3.0 |
205 |
16 |
10 |
1000°C |
|
75 |
3.1 |
280 |
17 |
10 |
1250°C |
|
80 |
3.3 |
215.7 |
17 |
10 |
1290°C |
|
85 |
3.4 |
230 |
17 |
10 |
1350°C |
|
92 |
3.6 |
312 |
18 |
10 |
1390°C |
|
95 |
3.7 |
304 |
20 |
10 |
1480°C |
|
99 |
3.81 |
340 |
34 |
10 |
1600°C |
|
99.7 |
3.85 |
370 |
35 |
10 |
1700°C |
There are 3 categories accorind to Alumina content and features: Common ceramic pipe, Al2O3<75%; High Alumina ceramic pipe, Al2O3 75%-90%; Corundum pipe:Al2O3>90%.
corundum ceramic tube physical and chemical properties
|
Item |
Unit |
High corundum |
Corundum |
High Purity Alumina |
|
|
Chemical Composition |
Al2O3 |
% |
99.7 |
99.3 |
85 |
|
SiO2 |
% |
0.1 |
|
|
|
|
Density |
g/cm3 |
3.95 |
3.88 |
3.2 |
|
|
Water absorption |
% |
0 |
0.01 |
0.2 |
|
|
Compressive Strength |
Mpa |
450 |
350 |
200 |
|
|
20Gas tightness |
Torr/L.sec |
10-11 |
10-11 |
10-11 |
|
|
High-temp.bending |
mm |
1700 0.2 |
1600 0.2 |
1400 0.2 |
|
|
High-temp. bonding |
|
1700 not |
1600 not |
1400 not |
|
|
20-1000 Expansion coefficient |
mm.10-6/.m |
8.6 |
8.2 |
8.2 |
|
|
Thermal conductivity |
W/m.k |
25 |
25 |
25 |
|
|
Breakdown voltage |
KV/mm |
20 |
20 |
15 |
|
|
High-temp. resistance |
1000 MΩ |
≥0.08 |
≥0.08 |
≥0.08 |
|
|
1300 MΩ |
≥0.02 |
≥0.02 |
≥0.02 |
||
|
20 DC resistance |
Ohm/cm |
1014 |
1014 |
1014 |
|
|
Chill and abrupt heat |
|
1550not cracking six times |
1550not cracking six times |
1300 not cracking thrice |
|
|
Max. Service Temp. |
|
1900 |
1800 |
1400 |
|
In order to decrease cost, Al2O3 roller also can be used as ceramic pipe after cutting under certain condition , they are low cost and has accurate size.
corundum ceramic tube Application:
1.Through pipe:
Inner liner tube and heating tube in electric furnace, heat treatment furnace and toughened furnace, chlorine pipe for production of alchlor and electric heating pipe in the tin trough in the production line of float glass.
1. Protector pipe: Protector tube of thermocouple and thermometer , carbon determinator and combustion pipe of metallurgy, iron and steel, chemical analysis.
2.Insulation pipe: Interval and insulation for wires of thermocouple. For specifications, there are single hole, double holes , four holes and multi-holes. For form, there are round and oval pipe.
pictures of corundum ceramic tube
Package of corundum ceramic tube : wooden case.
We also provide OEM service, the package can be designed according to your requirements.
Shipping of corundum ceramic tube : By vessel or by train from any Chinese port,
Samples can be delivered by International express.
package pictures of corundum ceramic tube
1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample
corundum ceramic tube Sample and trial order are accepted for the quality evaluation
3. Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
