ASTM F15 Fe-Ni-Co vs. G-CoCr28 Cobalt
ASTM F15 Fe-Ni-Co belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is ASTM F15 Fe-Ni-Co and the bottom bar is G-CoCr28 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Poisson's Ratio | 0.3 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 880 | |
| 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 320 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1330 |
| Melting Onset (Solidus), °C | 1450 | |
| 1270 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 470 |
| Thermal Conductivity, W/m-K | 17 | |
| 8.5 |
| Thermal Expansion, µm/m-K | 6.0 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 49 | |
| 100 |
| Density, g/cm3 | 8.3 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 5.2 | |
| 6.2 |
| Embodied Energy, MJ/kg | 71 | |
| 84 |
| Embodied Water, L/kg | 190 | |
| 440 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 29 | |
| 19 |
| Strength to Weight: Bending, points | 17 to 24 | |
| 19 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 2.2 |
| Thermal Shock Resistance, points | 32 to 55 | |
| 14 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.1 | |
| 0 |
| Carbon (C), % | 0 to 0.040 | |
| 0.050 to 0.25 |
| Chromium (Cr), % | 0 to 0.2 | |
| 27 to 30 |
| Cobalt (Co), % | 16 to 18 | |
| 48 to 52 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 |
| Iron (Fe), % | 50.3 to 56 | |
| 9.7 to 24.5 |
| Magnesium (Mg), % | 0 to 0.1 | |
| 0 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.2 | |
| 0 to 0.5 |
| Nickel (Ni), % | 28 to 30 | |
| 0 to 4.0 |
| Niobium (Nb), % | 0 | |
| 0 to 0.5 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.2 | |
| 0.5 to 1.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.1 | |
| 0 |