R30155 Cobalt vs. Z41121 Zinc
R30155 cobalt belongs to the iron alloys classification, while Z41121 zinc belongs to the zinc alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is R30155 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, % | 34 | |
| 50 |
| Poisson's Ratio | 0.29 | |
| 0.25 |
| Shear Modulus, GPa | 81 | |
| 35 |
| Tensile Strength: Ultimate (UTS), MPa | 850 | |
| 140 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 110 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 90 |
| Melting Completion (Liquidus), °C | 1470 | |
| 410 |
| Melting Onset (Solidus), °C | 1420 | |
| 400 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 390 |
| Thermal Conductivity, W/m-K | 12 | |
| 110 |
| Thermal Expansion, µm/m-K | 14 | |
| 26 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 11 |
| Density, g/cm3 | 8.5 | |
| 6.6 |
| Embodied Carbon, kg CO2/kg material | 9.7 | |
| 2.8 |
| Embodied Energy, MJ/kg | 150 | |
| 54 |
| Embodied Water, L/kg | 300 | |
| 340 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 | |
| 68 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 79 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 23 | |
| 23 |
| Strength to Weight: Axial, points | 28 | |
| 6.1 |
| Strength to Weight: Bending, points | 24 | |
| 9.3 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 44 |
| Thermal Shock Resistance, points | 21 | |
| 4.6 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.010 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0050 |
| Carbon (C), % | 0.080 to 0.16 | |
| 0 |
| Chromium (Cr), % | 20 to 22.5 | |
| 0 |
| Cobalt (Co), % | 18.5 to 21 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.080 to 0.49 |
| Iron (Fe), % | 24.3 to 36.2 | |
| 0 to 0.010 |
| Lead (Pb), % | 0 | |
| 0 to 0.010 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 2.5 to 3.5 | |
| 0 |
| Nickel (Ni), % | 19 to 21 | |
| 0 |
| Niobium (Nb), % | 0.75 to 1.3 | |
| 0 |
| Nitrogen (N), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tantalum (Ta), % | 0.75 to 1.3 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Titanium (Ti), % | 0 | |
| 0.050 to 0.18 |
| Tungsten (W), % | 2.0 to 3.0 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 99.292 to 99.87 |