Grade A Lava vs. Silicon Carbide
Grade A lava belongs to the oxide-based engineering ceramics classification, while silicon carbide belongs to the non-oxide engineering ceramics. There are 11 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is grade A lava and the bottom bar is silicon carbide.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 76 to 170 | |
| 2780 to 3900 |
| Flexural Strength, MPa | 28 to 69 | |
| 410 to 600 |
| Tensile Strength: Ultimate (UTS), MPa | 6.9 to 21 | |
| 210 to 370 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 650 to 1130 | |
| 500 to 1590 |
| Specific Heat Capacity, J/kg-K | 840 | |
| 670 to 1180 |
| Thermal Conductivity, W/m-K | 2.0 | |
| 120 to 170 |
| Thermal Expansion, µm/m-K | 2.5 to 3.3 | |
| 4.0 to 4.5 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.3 to 2.5 | |
| 3.0 to 3.2 |
Common Calculations
| Strength to Weight: Axial, points | 0.77 to 2.5 | |
| 18 to 34 |
| Strength to Weight: Bending, points | 3.2 to 7.3 | |
| 24 to 38 |
| Thermal Diffusivity, mm2/s | 1.0 | |
| 38 to 79 |