R30605 Cobalt vs. Grade 20 Titanium
R30605 cobalt belongs to the cobalt alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 21 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 R30605 cobalt and the bottom bar is grade 20 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 120 |
| Elongation at Break, % | 34 | |
| 5.7 to 17 |
| Fatigue Strength, MPa | 260 to 590 | |
| 550 to 630 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 81 | |
| 47 |
| Tensile Strength: Ultimate (UTS), MPa | 1130 to 1900 | |
| 900 to 1270 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1600 | |
| 850 to 1190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 400 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1660 |
| Melting Onset (Solidus), °C | 1330 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 520 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.6 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 9.8 | |
| 52 |
| Embodied Energy, MJ/kg | 140 | |
| 860 |
| Embodied Water, L/kg | 450 | |
| 350 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 14 |
| Stiffness to Weight: Bending, points | 21 | |
| 33 |
| Strength to Weight: Axial, points | 33 to 55 | |
| 50 to 70 |
| Strength to Weight: Bending, points | 25 to 36 | |
| 41 to 52 |
| Thermal Shock Resistance, points | 31 to 52 | |
| 55 to 77 |
Alloy Composition
Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 460
| Aluminum (Al), % | 0 | |
| 3.0 to 4.0 |
| Carbon (C), % | 0.050 to 0.15 | |
| 0 to 0.050 |
| Chromium (Cr), % | 19 to 21 | |
| 5.5 to 6.5 |
| Cobalt (Co), % | 46.4 to 57 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.020 |
| Iron (Fe), % | 0 to 3.0 | |
| 0 to 0.3 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 4.5 |
| Nickel (Ni), % | 9.0 to 11 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.12 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 71 to 77 |
| Tungsten (W), % | 14 to 16 | |
| 0 |
| Vanadium (V), % | 0 | |
| 7.5 to 8.5 |
| Zirconium (Zr), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |