R30003 Cobalt vs. R30035 Cobalt
Both R30003 cobalt and R30035 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 R30003 cobalt and the bottom bar is R30035 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 220 to 230 |
| Elongation at Break, % | 10 to 73 | |
| 9.0 to 46 |
| Fatigue Strength, MPa | 320 to 560 | |
| 170 to 740 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 83 | |
| 84 to 89 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1720 | |
| 900 to 1900 |
| Tensile Strength: Yield (Proof), MPa | 510 to 1090 | |
| 300 to 1650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 320 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1440 |
| Melting Onset (Solidus), °C | 1440 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 440 |
| Thermal Conductivity, W/m-K | 13 | |
| 11 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
| 1.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 95 | |
| 100 |
| Density, g/cm3 | 8.4 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 10 |
| Embodied Energy, MJ/kg | 110 | |
| 140 |
| Embodied Water, L/kg | 400 | |
| 410 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 600 to 2790 | |
| 210 to 5920 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 to 15 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 to 24 |
| Strength to Weight: Axial, points | 32 to 57 | |
| 29 to 61 |
| Strength to Weight: Bending, points | 26 to 38 | |
| 24 to 39 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 3.0 |
| Thermal Shock Resistance, points | 26 to 45 | |
| 23 to 46 |
Alloy Composition
| Boron (B), % | 0 to 0.1 | |
| 0 to 0.015 |
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.025 |
| Chromium (Cr), % | 19 to 21 | |
| 19 to 21 |
| Cobalt (Co), % | 39 to 41 | |
| 29.1 to 39 |
| Iron (Fe), % | 10 to 20.5 | |
| 0 to 1.0 |
| Manganese (Mn), % | 1.5 to 2.5 | |
| 0 to 0.15 |
| Molybdenum (Mo), % | 6.0 to 8.0 | |
| 9.0 to 10.5 |
| Nickel (Ni), % | 14 to 16 | |
| 33 to 37 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 1.2 | |
| 0 to 0.15 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 0 to 1.0 |