Annealed R30008 Cobalt vs. Grade M3210 Cast Iron
Annealed R30008 cobalt belongs to the cobalt alloys classification, while grade M3210 cast iron belongs to the iron alloys. There are 22 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 annealed R30008 cobalt and the bottom bar is grade M3210 cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 180 |
| Elongation at Break, % | 73 | |
| 10 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 83 | |
| 70 |
| Tensile Strength: Ultimate (UTS), MPa | 950 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 500 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 260 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1410 |
| Melting Onset (Solidus), °C | 1330 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 95 | |
| 1.9 |
| Density, g/cm3 | 8.4 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 1.5 |
| Embodied Energy, MJ/kg | 110 | |
| 20 |
| Embodied Water, L/kg | 400 | |
| 45 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 590 | |
| 130 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 31 | |
| 13 |
| Strength to Weight: Bending, points | 25 | |
| 14 |
| Thermal Shock Resistance, points | 25 | |
| 9.9 |
Alloy Composition
| Boron (B), % | 0 to 0.0010 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 2.2 to 2.9 |
| Chromium (Cr), % | 18.5 to 21.5 | |
| 0 |
| Cobalt (Co), % | 39 to 42 | |
| 0 |
| Iron (Fe), % | 7.6 to 20 | |
| 93.6 to 96.7 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0.15 to 1.3 |
| Molybdenum (Mo), % | 6.5 to 7.5 | |
| 0 |
| Nickel (Ni), % | 15 to 18 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0.020 to 0.15 |
| Silicon (Si), % | 0 to 1.2 | |
| 0.9 to 1.9 |
| Sulfur (S), % | 0 to 0.015 | |
| 0.020 to 0.2 |