Titanium 4-4-2 vs. EN 2.4964 Cobalt
Titanium 4-4-2 belongs to the titanium alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is titanium 4-4-2 and the bottom bar is EN 2.4964 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 220 |
| Elongation at Break, % | 10 | |
| 40 |
| Fatigue Strength, MPa | 590 to 620 | |
| 220 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 42 | |
| 86 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 960 |
| Tensile Strength: Yield (Proof), MPa | 1030 to 1080 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 290 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1630 |
| Melting Onset (Solidus), °C | 1560 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 400 |
| Thermal Conductivity, W/m-K | 6.7 | |
| 15 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.7 | |
| 9.6 |
| Embodied Carbon, kg CO2/kg material | 30 | |
| 9.8 |
| Embodied Energy, MJ/kg | 480 | |
| 140 |
| Embodied Water, L/kg | 180 | |
| 450 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4700 to 5160 | |
| 340 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 21 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 28 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 23 |
| Thermal Diffusivity, mm2/s | 2.6 | |
| 3.9 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 25 |
Alloy Composition
| Aluminum (Al), % | 3.0 to 5.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.050 to 0.15 |
| Chromium (Cr), % | 0 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 46.4 to 58 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 3.0 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 9.0 to 11 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0 |
| Tungsten (W), % | 0 | |
| 14 to 16 |
| Residuals, % | 0 to 0.4 | |
| 0 |