R30008 Cobalt vs. ASTM B631 Class B
R30008 cobalt belongs to the cobalt alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 12 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is R30008 cobalt and the bottom bar is ASTM B631 class B.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 210 | |
210 |
Poisson's Ratio | 0.29 | |
0.31 |
Shear Modulus, GPa | 83 | |
78 to 79 |
Thermal Properties
Latent Heat of Fusion, J/g | 320 | |
150 |
Melting Completion (Liquidus), °C | 1400 | |
2460 to 2480 |
Specific Heat Capacity, J/kg-K | 450 | |
170 |
Thermal Expansion, µm/m-K | 13 | |
12 |
Otherwise Unclassified Properties
Density, g/cm3 | 8.4 | |
14 |
Embodied Carbon, kg CO2/kg material | 8.1 | |
49 |
Embodied Energy, MJ/kg | 110 | |
760 |
Common Calculations
Stiffness to Weight: Axial, points | 14 | |
8.1 |
Stiffness to Weight: Bending, points | 24 | |
14 |