Titanium 15-3-3-3 vs. R30008 Cobalt
Titanium 15-3-3-3 belongs to the titanium alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is titanium 15-3-3-3 and the bottom bar is R30008 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 210 |
| Elongation at Break, % | 5.7 to 8.0 | |
| 1.1 to 73 |
| Fatigue Strength, MPa | 610 to 710 | |
| 320 to 530 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 39 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 1120 to 1390 | |
| 950 to 1700 |
| Tensile Strength: Yield (Proof), MPa | 1100 to 1340 | |
| 500 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 320 |
| Melting Completion (Liquidus), °C | 1620 | |
| 1400 |
| Melting Onset (Solidus), °C | 1560 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 450 |
| Thermal Expansion, µm/m-K | 9.8 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 95 |
| Density, g/cm3 | 4.8 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 59 | |
| 8.1 |
| Embodied Energy, MJ/kg | 950 | |
| 110 |
| Embodied Water, L/kg | 260 | |
| 400 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 14 |
| Stiffness to Weight: Bending, points | 32 | |
| 24 |
| Strength to Weight: Axial, points | 64 to 80 | |
| 31 to 56 |
| Strength to Weight: Bending, points | 50 to 57 | |
| 25 to 37 |
| Thermal Shock Resistance, points | 79 to 98 | |
| 25 to 44 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.5 | |
| 0 |
| Boron (B), % | 0 | |
| 0 to 0.0010 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.15 |
| Chromium (Cr), % | 2.5 to 3.5 | |
| 18.5 to 21.5 |
| Cobalt (Co), % | 0 | |
| 39 to 42 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 7.6 to 20 |
| Manganese (Mn), % | 0 | |
| 1.0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 6.5 to 7.5 |
| Nickel (Ni), % | 0 | |
| 15 to 18 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.13 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 | |
| 0 to 1.2 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tin (Sn), % | 2.5 to 3.5 | |
| 0 |
| Titanium (Ti), % | 72.6 to 78.5 | |
| 0 |
| Vanadium (V), % | 14 to 16 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |