Zirconia ceramic tubes are stabilized in the cubic crystal structure to avoid cracking and mechanical weakening during heating and cooling. Zirconia ceramic tubes offer low thermal conductivity and are electrical conductors above 800 centigrade degrees, it has excellent chemical inertness and corrosion resistance at high temperature of 2200 centigrade degrees.
Use temperature up to 2400 centigrade degrees.
High density
High hardness
Low thermal conductivity
Resistance to molten metals
Good wear resistance
High fracture toughness
| Properties | Units | Value |
| Density | g/cm3 | 6.04 |
| Color | – | white |
| Water Absorption | % @R.T. | 0.0 |
| Hardness | Moh’s | 6.5 |
| Hardness | knoop (kg/mm2) | 1600 |
| Compressive Strength | MPa @ R.T. | 2500 |
| Tensile Strength | MPa @ R.T. | 248 |
| Modulus of Elasticity (Young’s Mod.) |
GPa | 207 |
| Flexural Strength (MOR) | MPa @ R.T. | 900 |
| Fracture Toughness, KIc | MPa x m1/2 | 13.0 |
| Max. Use Temperature (* denotes inert atm.) |
ºC | 2400 |
| Thermal Shock Resistance | DT (ºC) | 280 – 360 |
| Thermal Conductivity | W/m-K @ R.T. | 2.7 |
| Coefficient of Linear Thermal Expansion, al | mm/m-ºC (~25ºC through ±1000ºC) | 11.0 |
| Specific Heat, cp | cal/g-ºC @ R.T. | 0.10 |
| Dielectric Constant | 1MHz @ R.T. | 26 @100kHz |
| Dielectric Strength | kV/mm | 9.0 |
| Electrical Resistivity | Wcm @ R.T. | >1013 |
Zirconia ceramic tubes are used in shaft, plunger, sealing structure, automobile industry, oil drilling equipment, insulation parts in electrical equipment, ceramic knife, ceramic hair clipper spare parts, with high density, bending strength and breaking tenacity.
Our ceramic tubes are exported to USA, Canada, Europe, and South America and Southeast Asia.
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