Graphite vs. Limestone
Graphite belongs to the non-oxide engineering ceramics classification, while limestone belongs to the natural stone. There are 12 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is graphite and the bottom bar is limestone.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 90 | |
| 700 |
| Elastic (Young's, Tensile) Modulus, GPa | 21 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 18 | |
| 100 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 220 | |
| 360 |
| Thermal Conductivity, W/m-K | 6.0 | |
| 2.1 |
| Thermal Expansion, µm/m-K | 4.9 | |
| 8.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.8 | |
| 2.6 |
Common Calculations
| Stiffness to Weight: Axial, points | 6.7 | |
| 16 |
| Stiffness to Weight: Bending, points | 53 | |
| 55 |
| Strength to Weight: Axial, points | 2.9 | |
| 11 |
| Strength to Weight: Bending, points | 8.7 | |
| 18 |
| Thermal Shock Resistance, points | 12 | |
| 12 |