G-CoCr28 Cobalt vs. Type 2 Magnetic Alloy
G-CoCr28 cobalt belongs to the cobalt alloys classification, while Type 2 magnetic alloy belongs to the iron alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. 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 G-CoCr28 cobalt and the bottom bar is Type 2 magnetic alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Elongation at Break, % | 6.7 | |
| 2.0 to 38 |
| Poisson's Ratio | 0.28 | |
| 0.3 |
| Shear Modulus, GPa | 83 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 560 | |
| 510 to 910 |
| Tensile Strength: Yield (Proof), MPa | 260 | |
| 260 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 270 |
| Melting Completion (Liquidus), °C | 1330 | |
| 1420 |
| Melting Onset (Solidus), °C | 1270 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 33 |
| Density, g/cm3 | 8.1 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 6.2 | |
| 5.9 |
| Embodied Energy, MJ/kg | 84 | |
| 81 |
| Embodied Water, L/kg | 440 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
| 18 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 | |
| 170 to 2010 |
| Stiffness to Weight: Axial, points | 15 | |
| 12 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 19 | |
| 17 to 30 |
| Strength to Weight: Bending, points | 19 | |
| 17 to 25 |
| Thermal Shock Resistance, points | 14 | |
| 16 to 29 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.25 | |
| 0 to 0.050 |
| Chromium (Cr), % | 27 to 30 | |
| 0 to 0.3 |
| Cobalt (Co), % | 48 to 52 | |
| 0 to 0.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 9.7 to 24.5 | |
| 48.2 to 53 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 0.8 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 to 0.3 |
| Nickel (Ni), % | 0 to 4.0 | |
| 47 to 49 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.010 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |