G-CoCr28 Cobalt vs. 7010 Aluminum
G-CoCr28 cobalt belongs to the cobalt alloys classification, while 7010 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, 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 G-CoCr28 cobalt and the bottom bar is 7010 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 70 |
| Elongation at Break, % | 6.7 | |
| 3.9 to 6.8 |
| Fatigue Strength, MPa | 130 | |
| 160 to 190 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 83 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 560 | |
| 520 to 590 |
| Tensile Strength: Yield (Proof), MPa | 260 | |
| 410 to 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 200 |
| Melting Completion (Liquidus), °C | 1330 | |
| 630 |
| Melting Onset (Solidus), °C | 1270 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 860 |
| Thermal Conductivity, W/m-K | 8.5 | |
| 150 |
| Thermal Expansion, µm/m-K | 14 | |
| 24 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 10 |
| Density, g/cm3 | 8.1 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 6.2 | |
| 8.3 |
| Embodied Energy, MJ/kg | 84 | |
| 150 |
| Embodied Water, L/kg | 440 | |
| 1120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
| 22 to 33 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 | |
| 1230 to 2130 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 45 |
| Strength to Weight: Axial, points | 19 | |
| 47 to 54 |
| Strength to Weight: Bending, points | 19 | |
| 47 to 52 |
| Thermal Diffusivity, mm2/s | 2.2 | |
| 58 |
| Thermal Shock Resistance, points | 14 | |
| 22 to 26 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 87.9 to 90.6 |
| Carbon (C), % | 0.050 to 0.25 | |
| 0 |
| Chromium (Cr), % | 27 to 30 | |
| 0 to 0.050 |
| Cobalt (Co), % | 48 to 52 | |
| 0 |
| Copper (Cu), % | 0 | |
| 1.5 to 2.0 |
| Iron (Fe), % | 9.7 to 24.5 | |
| 0 to 0.15 |
| Magnesium (Mg), % | 0 | |
| 2.1 to 2.6 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 0 to 4.0 | |
| 0 to 0.050 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 to 0.12 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.060 |
| Zinc (Zn), % | 0 | |
| 5.7 to 6.7 |
| Zirconium (Zr), % | 0 | |
| 0.1 to 0.16 |
| Residuals, % | 0 | |
| 0 to 0.15 |