Cork vs. Ferrite
Cork and ferrite belong to fundamentally different material chemistries. Cork is a polymeric material, while ferrite is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is cork and the bottom bar is ferrite.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 1.0 | |
| 430 to 2000 |
| Elastic (Young's, Tensile) Modulus, GPa | 0.020 | |
| 120 to 140 |
| Tensile Strength: Ultimate (UTS), MPa | 0.85 | |
| 48 to 71 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 2000 | |
| 710 to 1050 |
| Thermal Conductivity, W/m-K | 0.040 | |
| 3.9 to 6.3 |
| Thermal Expansion, µm/m-K | 200 | |
| 8.0 to 9.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.15 | |
| 4.7 to 4.8 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.074 | |
| 15 to 16 |
| Stiffness to Weight: Bending, points | 60 | |
| 35 to 36 |
| Strength to Weight: Axial, points | 1.6 | |
| 2.8 to 4.1 |
| Strength to Weight: Bending, points | 13 | |
| 6.2 to 8.0 |
| Thermal Diffusivity, mm2/s | 0.13 | |
| 0.78 to 1.9 |
| Thermal Shock Resistance, points | 16 | |
| 3.0 to 4.6 |