R30035 Cobalt vs. Titanium 15-3-3-3
R30035 cobalt belongs to the cobalt alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is R30035 cobalt and the bottom bar is titanium 15-3-3-3.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 220 to 230 | |
| 100 |
| Elongation at Break, % | 9.0 to 46 | |
| 5.7 to 8.0 |
| Fatigue Strength, MPa | 170 to 740 | |
| 610 to 710 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 84 to 89 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1900 | |
| 1120 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 300 to 1650 | |
| 1100 to 1340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 390 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1620 |
| Melting Onset (Solidus), °C | 1320 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 520 |
| Thermal Conductivity, W/m-K | 11 | |
| 8.1 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.8 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.7 | |
| 1.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 2.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 40 |
| Density, g/cm3 | 8.7 | |
| 4.8 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 59 |
| Embodied Energy, MJ/kg | 140 | |
| 950 |
| Embodied Water, L/kg | 410 | |
| 260 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 160 to 320 | |
| 78 to 89 |
| Stiffness to Weight: Axial, points | 14 to 15 | |
| 12 |
| Stiffness to Weight: Bending, points | 23 to 24 | |
| 32 |
| Strength to Weight: Axial, points | 29 to 61 | |
| 64 to 80 |
| Strength to Weight: Bending, points | 24 to 39 | |
| 50 to 57 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 3.2 |
| Thermal Shock Resistance, points | 23 to 46 | |
| 79 to 98 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 2.5 to 3.5 |
| Boron (B), % | 0 to 0.015 | |
| 0 |
| Carbon (C), % | 0 to 0.025 | |
| 0 to 0.050 |
| Chromium (Cr), % | 19 to 21 | |
| 2.5 to 3.5 |
| Cobalt (Co), % | 29.1 to 39 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0 to 0.15 | |
| 0 |
| Molybdenum (Mo), % | 9.0 to 10.5 | |
| 0 |
| Nickel (Ni), % | 33 to 37 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.13 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 0 | |
| 2.5 to 3.5 |
| Titanium (Ti), % | 0 to 1.0 | |
| 72.6 to 78.5 |
| Vanadium (V), % | 0 | |
| 14 to 16 |
| Residuals, % | 0 | |
| 0 to 0.4 |