High-alumina Refractory vs. Silicon Carbide
High-alumina refractory belongs to the oxide-based engineering ceramics classification, while silicon carbide belongs to the non-oxide engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is high-alumina refractory and the bottom bar is silicon carbide.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 | |
| 3.0 to 3.2 |
| Flexural Strength, MPa | 28 | |
| 410 to 600 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 500 to 1590 |
| Maximum Thermal Shock, °C | 210 | |
| 210 to 660 |
| Specific Heat Capacity, J/kg-K | 800 | |
| 670 to 1180 |
| Thermal Conductivity, W/m-K | 1.5 | |
| 120 to 170 |
| Thermal Diffusivity, mm2/s | 0.87 | |
| 38 to 79 |
| Thermal Expansion, µm/m-K | 4.3 | |
| 4.0 to 4.5 |