EN 2.4878 Nickel vs. R30605 Cobalt
EN 2.4878 nickel belongs to the nickel alloys classification, while R30605 cobalt belongs to the cobalt alloys. They have 51% of their average alloy composition in common. 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 EN 2.4878 nickel and the bottom bar is R30605 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 210 |
| Elongation at Break, % | 13 to 17 | |
| 34 |
| Fatigue Strength, MPa | 400 to 410 | |
| 260 to 590 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 1210 to 1250 | |
| 1130 to 1900 |
| Tensile Strength: Yield (Proof), MPa | 740 to 780 | |
| 470 to 1600 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 290 |
| Melting Completion (Liquidus), °C | 1370 | |
| 1410 |
| Melting Onset (Solidus), °C | 1320 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 410 |
| Thermal Conductivity, W/m-K | 11 | |
| 9.6 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.3 | |
| 9.6 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 9.8 |
| Embodied Energy, MJ/kg | 150 | |
| 140 |
| Embodied Water, L/kg | 370 | |
| 450 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 12 |
| Stiffness to Weight: Bending, points | 24 | |
| 21 |
| Strength to Weight: Axial, points | 41 to 42 | |
| 33 to 55 |
| Strength to Weight: Bending, points | 31 | |
| 25 to 36 |
| Thermal Diffusivity, mm2/s | 2.8 | |
| 2.5 |
| Thermal Shock Resistance, points | 37 to 39 | |
| 31 to 52 |
Alloy Composition
| Aluminum (Al), % | 1.2 to 1.6 | |
| 0 |
| Boron (B), % | 0.010 to 0.015 | |
| 0 |
| Carbon (C), % | 0.030 to 0.070 | |
| 0.050 to 0.15 |
| Chromium (Cr), % | 23 to 25 | |
| 19 to 21 |
| Cobalt (Co), % | 19 to 21 | |
| 46.4 to 57 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 to 3.0 |
| Manganese (Mn), % | 0 to 0.5 | |
| 1.0 to 2.0 |
| Molybdenum (Mo), % | 1.0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 43.6 to 52.2 | |
| 9.0 to 11 |
| Niobium (Nb), % | 0.7 to 1.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.0070 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0 to 0.050 | |
| 0 |
| Titanium (Ti), % | 2.8 to 3.2 | |
| 0 |
| Tungsten (W), % | 0 | |
| 14 to 16 |
| Zirconium (Zr), % | 0.030 to 0.070 | |
| 0 |