R30035 Cobalt vs. Chromium 33
R30035 cobalt belongs to the cobalt alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have 53% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is R30035 cobalt and the bottom bar is chromium 33.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 to 230 | |
| 200 |
| Elongation at Break, % | 9.0 to 46 | |
| 45 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 84 to 89 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1900 | |
| 850 |
| Tensile Strength: Yield (Proof), MPa | 300 to 1650 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 320 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 36 |
| Density, g/cm3 | 8.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 6.0 |
| Embodied Energy, MJ/kg | 140 | |
| 84 |
| Embodied Water, L/kg | 410 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 160 to 320 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 5920 | |
| 450 |
| Stiffness to Weight: Axial, points | 14 to 15 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 to 24 | |
| 25 |
| Strength to Weight: Axial, points | 29 to 61 | |
| 30 |
| Strength to Weight: Bending, points | 24 to 39 | |
| 25 |
| Thermal Shock Resistance, points | 23 to 46 | |
| 21 |
Alloy Composition
| Boron (B), % | 0 to 0.015 | |
| 0 |
| Carbon (C), % | 0 to 0.025 | |
| 0 to 0.015 |
| Chromium (Cr), % | 19 to 21 | |
| 31 to 35 |
| Cobalt (Co), % | 29.1 to 39 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.3 to 1.2 |
| Iron (Fe), % | 0 to 1.0 | |
| 25.7 to 37.9 |
| Manganese (Mn), % | 0 to 0.15 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 9.0 to 10.5 | |
| 0.5 to 2.0 |
| Nickel (Ni), % | 33 to 37 | |
| 30 to 33 |
| Nitrogen (N), % | 0 | |
| 0.35 to 0.6 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 to 1.0 | |
| 0 |