R30008 Cobalt vs. Titanium 6-6-2
R30008 cobalt belongs to the cobalt alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 22 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 R30008 cobalt and the bottom bar is titanium 6-6-2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 120 |
| Elongation at Break, % | 1.1 to 73 | |
| 6.7 to 9.0 |
| Fatigue Strength, MPa | 320 to 530 | |
| 590 to 670 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 83 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 950 to 1700 | |
| 1140 to 1370 |
| Tensile Strength: Yield (Proof), MPa | 500 to 1080 | |
| 1040 to 1230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 400 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1610 |
| Melting Onset (Solidus), °C | 1330 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 540 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 95 | |
| 40 |
| Density, g/cm3 | 8.4 | |
| 4.8 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 29 |
| Embodied Energy, MJ/kg | 110 | |
| 470 |
| Embodied Water, L/kg | 400 | |
| 200 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 34 |
| Strength to Weight: Axial, points | 31 to 56 | |
| 66 to 79 |
| Strength to Weight: Bending, points | 25 to 37 | |
| 50 to 57 |
| Thermal Shock Resistance, points | 25 to 44 | |
| 75 to 90 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 5.0 to 6.0 |
| Boron (B), % | 0 to 0.0010 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.050 |
| Chromium (Cr), % | 18.5 to 21.5 | |
| 0 |
| Cobalt (Co), % | 39 to 42 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.35 to 1.0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 7.6 to 20 | |
| 0.35 to 1.0 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 6.5 to 7.5 | |
| 5.0 to 6.0 |
| Nickel (Ni), % | 15 to 18 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.040 |
| Oxygen (O), % | 0 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 1.2 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Titanium (Ti), % | 0 | |
| 82.8 to 87.8 |
| Residuals, % | 0 | |
| 0 to 0.4 |