Carbon-carbon vs. R30001 Cobalt
Carbon-carbon and R30001 cobalt belong to fundamentally different material chemistries. Carbon-carbon is a ceramic material, while R30001 cobalt is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 17 material properties with values for both materials. Properties with values for just one material (11, 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 carbon-carbon and the bottom bar is R30001 cobalt.
Mechanical Properties
Compressive (Crushing) Strength, MPa | 240 | |
1930 |
Elastic (Young's, Tensile) Modulus, GPa | 95 | |
220 |
Poisson's Ratio | 0.32 | |
0.28 |
Shear Modulus, GPa | 36 | |
86 |
Tensile Strength: Ultimate (UTS), MPa | 19 | |
620 |
Thermal Properties
Specific Heat Capacity, J/kg-K | 760 | |
430 |
Thermal Conductivity, W/m-K | 40 | |
15 |
Thermal Expansion, µm/m-K | 4.0 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 0.090 | |
1.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 0.48 | |
1.8 |
Otherwise Unclassified Properties
Density, g/cm3 | 1.7 | |
9.0 |
Common Calculations
Stiffness to Weight: Axial, points | 31 | |
14 |
Stiffness to Weight: Bending, points | 89 | |
22 |
Strength to Weight: Axial, points | 3.0 | |
19 |
Strength to Weight: Bending, points | 9.1 | |
18 |
Thermal Diffusivity, mm2/s | 31 | |
3.7 |
Thermal Shock Resistance, points | 3.5 | |
19 |