High-alumina Refractory vs. Alumina
Both high-alumina refractory and alumina are oxide-based engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is high-alumina refractory and the bottom bar is alumina.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 | |
| 3.4 to 4.1 |
| Flexural Strength, MPa | 28 | |
| 260 to 430 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 650 to 1730 |
| Maximum Thermal Shock, °C | 210 | |
| 200 to 300 |
| Specific Heat Capacity, J/kg-K | 800 | |
| 870 to 940 |
| Thermal Conductivity, W/m-K | 1.5 | |
| 14 to 30 |
| Thermal Diffusivity, mm2/s | 0.87 | |
| 3.7 to 10 |
| Thermal Expansion, µm/m-K | 4.3 | |
| 6.7 to 8.2 |