R30816 Cobalt vs. Z41121 Zinc
R30816 cobalt belongs to the cobalt alloys classification, while Z41121 zinc belongs to the zinc alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is R30816 cobalt and the bottom bar is Z41121 zinc.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 87 |
| Elongation at Break, % | 23 | |
| 50 |
| Poisson's Ratio | 0.3 | |
| 0.25 |
| Shear Modulus, GPa | 81 | |
| 35 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 | |
| 140 |
| Tensile Strength: Yield (Proof), MPa | 460 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 110 |
| Melting Completion (Liquidus), °C | 1540 | |
| 410 |
| Melting Onset (Solidus), °C | 1460 | |
| 400 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 390 |
| Thermal Conductivity, W/m-K | 13 | |
| 110 |
| Thermal Expansion, µm/m-K | 12 | |
| 26 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.1 | |
| 6.6 |
| Embodied Carbon, kg CO2/kg material | 20 | |
| 2.8 |
| Embodied Energy, MJ/kg | 320 | |
| 54 |
| Embodied Water, L/kg | 440 | |
| 340 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 | |
| 68 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 510 | |
| 79 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 22 | |
| 23 |
| Strength to Weight: Axial, points | 31 | |
| 6.1 |
| Strength to Weight: Bending, points | 25 | |
| 9.3 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 44 |
| Thermal Shock Resistance, points | 28 | |
| 4.6 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.010 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0050 |
| Carbon (C), % | 0.32 to 0.42 | |
| 0 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 40 to 49.8 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.080 to 0.49 |
| Iron (Fe), % | 0 to 5.0 | |
| 0 to 0.010 |
| Lead (Pb), % | 0 | |
| 0 to 0.010 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 19 to 21 | |
| 0 |
| Niobium (Nb), % | 3.5 to 4.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tantalum (Ta), % | 3.5 to 4.5 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Titanium (Ti), % | 0 | |
| 0.050 to 0.18 |
| Tungsten (W), % | 3.5 to 4.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 99.292 to 99.87 |