R30035 Cobalt vs. R30003 Cobalt
Both R30035 cobalt and R30003 cobalt are cobalt alloys. They have 77% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is R30035 cobalt and the bottom bar is R30003 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 to 230 | |
| 210 |
| Elongation at Break, % | 9.0 to 46 | |
| 10 to 73 |
| Fatigue Strength, MPa | 170 to 740 | |
| 320 to 560 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 84 to 89 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1900 | |
| 970 to 1720 |
| Tensile Strength: Yield (Proof), MPa | 300 to 1650 | |
| 510 to 1090 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 310 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1400 |
| Melting Onset (Solidus), °C | 1320 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 450 |
| Thermal Conductivity, W/m-K | 11 | |
| 13 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.7 | |
| 2.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 2.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 95 |
| Density, g/cm3 | 8.7 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 8.0 |
| Embodied Energy, MJ/kg | 140 | |
| 110 |
| Embodied Water, L/kg | 410 | |
| 400 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 5920 | |
| 600 to 2790 |
| Stiffness to Weight: Axial, points | 14 to 15 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 to 24 | |
| 24 |
| Strength to Weight: Axial, points | 29 to 61 | |
| 32 to 57 |
| Strength to Weight: Bending, points | 24 to 39 | |
| 26 to 38 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 3.3 |
| Thermal Shock Resistance, points | 23 to 46 | |
| 26 to 45 |
Alloy Composition
| Boron (B), % | 0 to 0.015 | |
| 0 to 0.1 |
| Carbon (C), % | 0 to 0.025 | |
| 0 to 0.15 |
| Chromium (Cr), % | 19 to 21 | |
| 19 to 21 |
| Cobalt (Co), % | 29.1 to 39 | |
| 39 to 41 |
| Iron (Fe), % | 0 to 1.0 | |
| 10 to 20.5 |
| Manganese (Mn), % | 0 to 0.15 | |
| 1.5 to 2.5 |
| Molybdenum (Mo), % | 9.0 to 10.5 | |
| 6.0 to 8.0 |
| Nickel (Ni), % | 33 to 37 | |
| 14 to 16 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 1.2 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 to 1.0 | |
| 0 |