Dengfeng Jinyu Thermoelectric Material Co., Ltd.
Dengfeng Jinyu Thermoelectric Material Co., Ltd.
[
Henan,
China (Mainland) ]
Henan, China (Mainland)
JINYU
JY-AL0307
| Packaging Details: | In compound wooden case, lined with sponge |
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| Delivery Detail: | 5-15 |
Alumina ceramic ball, Alumina ceramic tube,Alumina tube,Alumina crucible,Alumina tube, Alumina Thermocouple Protection Tube
Our 99 High Alumina ceramic ball is in chemical composition 99+% Alumina and a maximum 0.2wt% SiO2. Because of its high alumina content and low silica (SiO2 ), it's a very excellent and ideal product for high temperature and steam applications, such as secondary reformers in ammonia processing, where leached silica will coat downstream equipment or foul the catalyst bed.
99 High Alumina ceramic ball has very excellent thermal properties, with its high density high-temperature resistance 1550, also it's a good choice for heat retention or equilibration media.
For its superior chemical resistance, it's suitable for applications in olefin processes, such as ethylene dryers, where there's the polymerization problem.
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Chemical Composition: |
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Typical Technical Composition |
Min.% |
Max.% |
Usual% |
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SiO2 |
0.20 |
0.18 |
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Al2O3 |
99.00 |
99.60 |
99.30 |
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Fe2O3 |
0.10 |
0.02 |
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TiO2 |
0.55 |
0.02 |
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CaO |
0.10 |
0.05 |
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MgO |
0.10 |
0.05 |
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Na2O |
0.10 |
0.08 |
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K2O |
0.10 |
0.08 |
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Physical Properties: |
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Index |
Value |
Value |
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Leachable Iron |
≤0.01% |
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Apparent Porosity by Weight |
≤7.0% |
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Moh's Hardness Scale |
>8.0 |
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Water Absorption |
<4.0wt.% |
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Acid Resistance |
>99.8% |
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Thermal Conductivity |
0.7-0.8w/m 2.k |
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Thermal Expansion @500 Centigrade |
0.10% |
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Thermal Shock Stability, 1000 Centigrade then water cooling |
10 times |
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Max. Operating Temperature |
1550 Centigrade |
2822 Centigrade |
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Specific Density |
3,700 kg/m3 |
231 lb /ft 3 |
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Bulk Density (Packing Density) |
2,100 kg/m3 |
131 lb /ft 3 |
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Crush Strength: |
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Size |
Crush Strength |
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Normal Size |
(lbs) |
(kg) |
(N/pc) |
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mm |
inch |
min. |
min. |
min. |
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3 |
1/8 |
115 |
52 |
510 |
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6 |
1/4 |
230 |
105 |
1030 |
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10 |
3/8 |
440 |
200 |
1961 |
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13 |
1/2 |
1355 |
615 |
6031 |
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16 |
5/8 |
1720 |
780 |
7650 |
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19 |
3/4 |
2315 |
1050 |
10297 |
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25 |
1 |
3130 |
1420 |
13925 |
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38 |
1-1/2 |
4034 |
1830 |
17946 |
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50 |
2 |
4960 |
2250 |
22065 |
Application:
Ceramic, building materials, Chemical, inks, cosmetics etc.
Packing:
25kg/Plastic Bag or 250kgs/Steel Drum, Palletized
Standard:
3mm, 6mm, 9mm, 13mm, 16mm, 19mm, 25mm, 50mm
