Alumina Ceramic Wear-Resistant Pipe Drainage Pipe Ceramic Lined Composite Pipe
The hardness of wear-resistant ceramics is higher, second only to diamond, far exceeding the wear-resistant steel and stainless steel wear resistance, also known as special corundum ceramics. It has stable chemical properties, in high temperature environment, will not occur deformation or damage, so it also has high temperature resistance.
Alumina Ceramic Properties
1. High voltage resistance
2. Excellent insulation performance
3. High corrosion resistance
4. High mechanical strength and hardness
5. Extremly abrasion resistance performance
6. High temperature up to 1600ºC
7. Wide scope of application
Alumina Ceramic Properties
Alumina Ceramic Properties | 95%Al2O3 | 99%Al2O3 | 99.5%Al2O3 | |
Item | Unit | Typical Values | ||
Physical Properties | ||||
Color | White | Ivory | yellow | |
Density | g/cm3 | >3.6 | 3.89 | 3.96 |
Alumina Content | % | 95% | 99% | 99.50% |
Gas permeability | 0 | 0 | 0 | |
Water Absorption | 0 | 0 | 0 | |
Mechanical Properties | ||||
MONS' Hardness | Grade | 9 | 9 | 9 |
Rockwell Hardness | HRA | ≥85 | ≥89 | ≥89 |
Vickers Hardness (Hv50) | Gpa(Kg/mm²) | 15.7(1600) | 15.7(1600) | 15.7(1600) |
Flexural Strength(20°C) | psiX103 | 358 | 550 | 550 |
Compressive Strength(20°C) | psiX103 | 2068(300) | 2600(377) | 2600(377) |
Modulus of Elasticity | Gpa | 275 | ||
Fracture Toughness(20°C) | Mpa.m3/2 | 4.3 | 5.6 | 6 |
Thermal Properties | ||||
Thermal Conductivity(20°C) | W(m.K) | 16 | 30 | 30.4 |
Thermal Expansion(25-1000°C) | 1X10-6/℃ | 7.6 | 7.9 | 8.2 |
Maximum Use Temperature | °C | 1450 | 1600 | 1650 |
Thermal shock resistance | °C | 250 | 200 | 200 |
Electronic Properties | ||||
Volume resistivity(100°C) | Ohm/cm2 | >1013 | >1014 | >1014 |
Dielectric breakdown strength | KV/mm | 8.7(220) | 8.7(220) | 8.7(220) |
Dielectric Constant | Er | 9 | 9.7 | 9.7 |
Dielectric constant (100MHz) | Er | 9.5 |
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