Titanium 4-4-2 vs. R30003 Cobalt
Titanium 4-4-2 belongs to the titanium alloys classification, while R30003 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.
For each property being compared, the top bar is titanium 4-4-2 and the bottom bar is R30003 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 210 |
| Elongation at Break, % | 10 | |
| 10 to 73 |
| Fatigue Strength, MPa | 590 to 620 | |
| 320 to 560 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 42 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 970 to 1720 |
| Tensile Strength: Yield (Proof), MPa | 1030 to 1080 | |
| 510 to 1090 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 310 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1400 |
| Melting Onset (Solidus), °C | 1560 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 450 |
| Thermal Conductivity, W/m-K | 6.7 | |
| 13 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 95 |
| Density, g/cm3 | 4.7 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 30 | |
| 8.0 |
| Embodied Energy, MJ/kg | 480 | |
| 110 |
| Embodied Water, L/kg | 180 | |
| 400 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4700 to 5160 | |
| 600 to 2790 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 32 to 57 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 26 to 38 |
| Thermal Diffusivity, mm2/s | 2.6 | |
| 3.3 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 26 to 45 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 5.0 | |
| 0 |
| Boron (B), % | 0 | |
| 0 to 0.1 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 39 to 41 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 10 to 20.5 |
| Manganese (Mn), % | 0 | |
| 1.5 to 2.5 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 6.0 to 8.0 |
| Nickel (Ni), % | 0 | |
| 14 to 16 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 0 to 1.2 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |