Austenitic Nodular Cast Iron vs. R30035 Cobalt
Austenitic nodular cast iron belongs to the iron alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is austenitic nodular cast iron and the bottom bar is R30035 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 to 190 | |
| 220 to 230 |
| Elongation at Break, % | 6.8 to 34 | |
| 9.0 to 46 |
| Poisson's Ratio | 0.29 to 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 70 to 72 | |
| 84 to 89 |
| Tensile Strength: Ultimate (UTS), MPa | 430 to 500 | |
| 900 to 1900 |
| Tensile Strength: Yield (Proof), MPa | 190 to 240 | |
| 300 to 1650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 to 350 | |
| 320 |
| Melting Completion (Liquidus), °C | 1340 to 1400 | |
| 1440 |
| Melting Onset (Solidus), °C | 1300 to 1360 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 470 to 490 | |
| 440 |
| Thermal Expansion, µm/m-K | 13 to 14 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 to 25 | |
| 100 |
| Density, g/cm3 | 7.7 to 8.0 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 3.5 to 4.9 | |
| 10 |
| Embodied Energy, MJ/kg | 48 to 68 | |
| 140 |
| Embodied Water, L/kg | 91 to 120 | |
| 410 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 140 | |
| 160 to 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 98 to 160 | |
| 210 to 5920 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 to 15 |
| Stiffness to Weight: Bending, points | 24 to 25 | |
| 23 to 24 |
| Strength to Weight: Axial, points | 15 to 18 | |
| 29 to 61 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 24 to 39 |
| Thermal Shock Resistance, points | 12 to 15 | |
| 23 to 46 |