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Industrial Ceramic Products
99 alumina & 95 alumina ceramic materials are mainly used for high temperature products and corrosion-resistant, wear-resistant parts.
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Industrial Ceramic Products
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Ceramic Products
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Product Introduction
99 alumina ceramic materials is mainly used for the production of high temperature crucible, insulation pipe, refractory tube and special wear-resistant materials, such as ceramic bearings, ceramic seals and water valve etc.
95 alumina ceramic materials is mainly used for corrosion-resistant, wear-resistant parts.
REV.2017-1
| Material | Alumina | Magnesium Oxide | Mullite | ||||
| Properties | Units | AL995 | AL99 | AL95 | AL60 | MgO | ---- |
| Ingredient | ---- | 0.995 | 99.00% | 95% | 60% | ---- | ---- |
| Color | ---- | Ivory | Ivory | Ivory &White | White | White | White |
| Permeability | ---- | Gas-tight | Gas-tight | Gas-tight | Gas-tight | Gas-tight | Gas-tight |
| Density | g/cm³ | 3.9 | 3.8 | 3.75 | 3 | 3.58 | 2.6 |
| Hardness | Mohs Scale | 9 | 9 | 8.8 | 7.5 | 6 | 8 |
| Water Absorption | ---- | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% | 0 | 0 |
| Flexural Strength (Typical 20℃) | MPa | 370 | 340 | 304 | 205 | 140 | 120 |
| Compressive Strength (Typical 20℃) | MPa | 2300 | 2210 | 1910 | 1820 | 550 | 500 |
| C.T.E. (25℃ to 800℃) | 10-8/℃ | 7.6 | 7.6 | 7.6 | 7.1 | 13 | 5.6 |
| Dielectric Strength (5mm Thickness) | AC-kv/mm | 10 | 10 | 10 | 9 | ---- | 10.2 |
| Dielectric Loss25℃ @1MHz | ---- | ＜0.0001 | 0.0006 | 0.0004 | 0.0007 | ---- | 0.002 |
| Dielectric Constant | 25℃@1MHz | 9.7 | 9.5 | 9.2 | 8.6 | ---- | 6 |
| Volume Resistivity (20℃）(300℃) | Ω·cm² | ＞1014 2*1012 |
＞1014 4*1011 |
＞1014 2*1011 |
＞1014 ＞1013 |
＞1014 |
＞1014 5*1012 |
| Long-term operating temperature | ℃ | 1650 | 1600 | 1400 | 1100 | 2300 | 1550 |
| Thermal Conductivity (25℃) | W/m·K | 35 | 34 | 20 | 16 | 36 | 3.6 |
|
Material |
Alumina |
Magnesium |
Mullite |
||||
|
Properties |
Units |
AL995 |
AL99 |
AL95 |
AL60 |
MgO |
---- |
|
Ingredient |
---- |
99.50% |
99.00% |
95% |
60% |
---- |
---- |
|
Color |
---- |
Ivory |
Ivory |
Ivory &White |
White |
White |
White |
|
Permeability |
---- |
Gas-tight |
Gas-tight |
||||
|
Density |
g/cm³ |
3.9 |
3.8 |
3.75 |
3 |
3.58 |
2.6 |
|
Hardness |
Mohs Scale |
9 |
9 |
8.8 |
7.5 |
6 |
8 |
|
Water Absorption |
---- |
≤0.2% |
≤0.2% |
≤0.2% |
≤0.2% |
0 |
0 |
|
Flexural Strength (Typical 20℃) |
MPa |
370 |
340 |
304 |
205 |
140 |
120 |
|
Compressive Strength (Typical 20℃) |
MPa |
2300 |
2210 |
1910 |
1820 |
550 |
500 |
|
C.T.E. (25℃ to 800℃) |
10-8/℃ |
7.6 |
7.6 |
7.6 |
7.1 |
13 |
5.6 |
|
Dielectric Strength (5mm Thickness) |
AC-kv/mm |
10 |
10 |
10 |
9 |
---- |
10.2 |
|
Dielectric Loss25℃ @1MHz |
---- |
＜0.0001 |
0.0006 |
0.0004 |
0.0007 |
---- |
0.002 |
|
Dielectric Constant |
25℃@1MHz |
9.7 |
9.5 |
9.2 |
8.6 |
---- |
6 |
|
Volume Resistivity (20℃)(300℃) |
Ω·cm² |
＞1014 2* 1012 |
＞1014 4* 1011 |
＞ 1014 2* 1011 |
＞1014 ＞1013 |
＞1014 ---- |
＞1014 5*1012 |
|
Long-term operating temperature |
℃ |
1650 |
1600 |
1400 |
1100 |
2300 |
1550 |
|
Thermal Conductivity (25℃) |
W/m·K |
35 |
34 |
20 |
16 |
36 |
3.6 |
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