R30016 Cobalt vs. EN 1.0034 Steel
R30016 cobalt belongs to the cobalt alloys classification, while EN 1.0034 steel belongs to the iron alloys. There are 27 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 R30016 cobalt and the bottom bar is EN 1.0034 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 | |
| 190 |
| Elongation at Break, % | 8.4 | |
| 9.0 to 32 |
| Fatigue Strength, MPa | 290 | |
| 140 to 170 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 85 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 1010 | |
| 340 to 380 |
| Tensile Strength: Yield (Proof), MPa | 580 | |
| 180 to 280 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 250 |
| Melting Completion (Liquidus), °C | 1360 | |
| 1460 |
| Melting Onset (Solidus), °C | 1270 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 53 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.9 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 8.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.5 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 7.7 | |
| 1.4 |
| Embodied Energy, MJ/kg | 110 | |
| 18 |
| Embodied Water, L/kg | 500 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 72 | |
| 31 to 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 770 | |
| 84 to 210 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 33 | |
| 12 to 13 |
| Strength to Weight: Bending, points | 26 | |
| 14 to 15 |
| Thermal Diffusivity, mm2/s | 3.9 | |
| 14 |
| Thermal Shock Resistance, points | 24 | |
| 11 to 12 |
Alloy Composition
| Carbon (C), % | 0.9 to 1.4 | |
| 0 to 0.15 |
| Chromium (Cr), % | 28 to 32 | |
| 0 |
| Cobalt (Co), % | 49.6 to 66.9 | |
| 0 |
| Iron (Fe), % | 0 to 3.0 | |
| 98.7 to 100 |
| Manganese (Mn), % | 0.5 to 2.0 | |
| 0 to 0.7 |
| Molybdenum (Mo), % | 0 to 1.5 | |
| 0 |
| Nickel (Ni), % | 0 to 3.0 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0.2 to 2.0 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.045 |
| Tungsten (W), % | 3.5 to 5.5 | |
| 0 |