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● Description:
Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. Alumina ceramic is a kind of widely used ceramic. Because of its superior performance, it has been used more and more widely in modern society, meeting the needs of daily use and special performance.
● Feature:
1. Corrosion resistance, excellent rust resistance and intergranular corrosion resistance;
2. Wear resistance, good mechanical strength and ductility, high hardness, wear resistance and durability;
3. High temperature resistance, the use temperature limit can reach about 600 ℃;
4. Acid and alkali resistance, good corrosion resistance to alkali solution and most organic and inorganic acids;
5. High cost performance, cheaper than zirconia ceramics
● Technical Date:
Physical and Chemical Index
| Typical Value | ||
KD-90 | KD-92 | KD-95 | |
Al2O3 | 90-92% | 94.5-95.3% | 99-99.4% |
SiO2 | 2.8-3.5% | 1.9-2.3% | 1.80-2.2% |
MgO | 2.15-2.45% | 1.3-1.5% | 1.1-1.4% |
CaO | 1.5-2.1% | 1.0-1.3% | 0.9-1.1% |
Na2O | <0.2% | <0.2% | <0.2% |
Specific Gravity/Desity | >3.60g/cm3 | >3.65g/cm3 | >3.65g/cm3 |
Water Absorption | 0% | 0% | 0% |
Hardness Mohs | ~9 | ~9 | ~9 |
Colour | White | White | White |
Stability of tempreture | untile 1300℃ | untile 1300℃ | untile 1300℃ |
Bending Strength | >340N/mm2 | >340N/mm2 | >340N/mm2 |
Compressive Strength | >2250N/mm2 | >2250N/mm2 | >2250N/mm2 |
● Available size:
From dia. 0.5mm up to dia.100mm are available.
● Applications:
● Package & Delivery:
● Description:
Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. Alumina ceramic is a kind of widely used ceramic. Because of its superior performance, it has been used more and more widely in modern society, meeting the needs of daily use and special performance.
● Feature:
1. Corrosion resistance, excellent rust resistance and intergranular corrosion resistance;
2. Wear resistance, good mechanical strength and ductility, high hardness, wear resistance and durability;
3. High temperature resistance, the use temperature limit can reach about 600 ℃;
4. Acid and alkali resistance, good corrosion resistance to alkali solution and most organic and inorganic acids;
5. High cost performance, cheaper than zirconia ceramics
● Technical Date:
Physical and Chemical Index
| Typical Value | ||
KD-90 | KD-92 | KD-95 | |
Al2O3 | 90-92% | 94.5-95.3% | 99-99.4% |
SiO2 | 2.8-3.5% | 1.9-2.3% | 1.80-2.2% |
MgO | 2.15-2.45% | 1.3-1.5% | 1.1-1.4% |
CaO | 1.5-2.1% | 1.0-1.3% | 0.9-1.1% |
Na2O | <0.2% | <0.2% | <0.2% |
Specific Gravity/Desity | >3.60g/cm3 | >3.65g/cm3 | >3.65g/cm3 |
Water Absorption | 0% | 0% | 0% |
Hardness Mohs | ~9 | ~9 | ~9 |
Colour | White | White | White |
Stability of tempreture | untile 1300℃ | untile 1300℃ | untile 1300℃ |
Bending Strength | >340N/mm2 | >340N/mm2 | >340N/mm2 |
Compressive Strength | >2250N/mm2 | >2250N/mm2 | >2250N/mm2 |
● Available size:
From dia. 0.5mm up to dia.100mm are available.
● Applications:
● Package & Delivery:
●Chemical Composition:
Composition | Al₂O₃ | SiO₂ | CaO+MgO | Fe₂O₃ |
Wt% | ≥92 | 7 max | ≤2 | <0.1 |
●Typical Properties:
Specific Gravity g/cm³ | Bulk Density g/cm³ | Hardness Moh’s | Water Absorption % | Self wearing loss % (24hrs) | Compression Mpa |
≥3.63 | ≥2.2 | 9 | <0.01 | ≤0.012 | ≥2000 |
● SizesΦ:
Size(mm) | Size(mm) | Size(mm) | Size(mm) |
0.5 | 6.0 | 20.0 | 70.0 |
1.0 | 8.0 | 25.0 | 80.0 |
2.0 | 10.0 | 30.0 | 90.0 |
3.0 | 13.0 | 40.0 | 100.0 |
4.0 | 15.0 | 50.0 | |
5.0 | 18.0 | 60.0 |
●Chemical Composition:
Composition | Al₂O₃ | SiO₂ | CaO+MgO | Fe₂O₃ |
Wt% | ≥92 | 7 max | ≤2 | <0.1 |
●Typical Properties:
Specific Gravity g/cm³ | Bulk Density g/cm³ | Hardness Moh’s | Water Absorption % | Self wearing loss % (24hrs) | Compression Mpa |
≥3.63 | ≥2.2 | 9 | <0.01 | ≤0.012 | ≥2000 |
● SizesΦ:
Size(mm) | Size(mm) | Size(mm) | Size(mm) |
0.5 | 6.0 | 20.0 | 70.0 |
1.0 | 8.0 | 25.0 | 80.0 |
2.0 | 10.0 | 30.0 | 90.0 |
3.0 | 13.0 | 40.0 | 100.0 |
4.0 | 15.0 | 50.0 | |
5.0 | 18.0 | 60.0 |