
1.Purity:92%, 95%, 96%, 99%, 99.7%2.Good mechanical strength
3.Excellent electrical insulation
4.High-frequency loss
5.Good thermal conductivity
6.Heat, wear and corrosion resistance.
4.High Pressure Solenoid Valve


Alumina Ceramic Property | |||||
Property | Unit | 92% | 95% | 99% | |
Density | g/cm3 | ≥3.63 | ≥3.68 | ≥3.83 | |
Water absorption | % | O | O | O | |
Sintering temperature | °C | 1500-1700 | 1600-1800 | 1700-1800 | |
Hardness | HV | ≥1400 | ≥1500 | ≥1650 | |
Flexural strength | Kgf/cm2 | 3000 | 3000 | 3000 | |
Compressive strength | Kgf/cm2 | 24000 | 25000 | 26000 | |
Fracture toughness | Map.m3/2 | 3~4 | 3~4 | 4~5 | |
Maximum temperature | °C | 1600 | 1700 | 1800 | |
Coefficient of thermal expansion | /°C | 8*10-6 | 8*10-6 | 8*10-6 | |
Heat shock | T(°C) | 220 | 220 | 220 | |
Thermal conductivity | W/m.k(25-300°C) | 25 14 | 25 14 | 25 14 | |
20°C | >1012 | >1012 | >1012 |








