C79200 Nickel Silver vs. R30155 Cobalt
C79200 nickel silver belongs to the copper alloys classification, while R30155 cobalt belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is C79200 nickel silver and the bottom bar is R30155 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 210 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 44 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 540 | |
| 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 1100 |
| Melting Completion (Liquidus), °C | 950 | |
| 1470 |
| Melting Onset (Solidus), °C | 910 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 450 |
| Thermal Conductivity, W/m-K | 42 | |
| 12 |
| Thermal Expansion, µm/m-K | 19 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 80 |
| Density, g/cm3 | 8.4 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 9.7 |
| Embodied Energy, MJ/kg | 56 | |
| 150 |
| Embodied Water, L/kg | 310 | |
| 300 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 23 |
| Strength to Weight: Axial, points | 16 to 18 | |
| 28 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 24 |
| Thermal Diffusivity, mm2/s | 13 | |
| 3.2 |
| Thermal Shock Resistance, points | 16 to 18 | |
| 21 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.080 to 0.16 |
| Chromium (Cr), % | 0 | |
| 20 to 22.5 |
| Cobalt (Co), % | 0 | |
| 18.5 to 21 |
| Copper (Cu), % | 59 to 66.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 24.3 to 36.2 |
| Lead (Pb), % | 0.8 to 1.4 | |
| 0 |
| Manganese (Mn), % | 0 to 0.5 | |
| 1.0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 2.5 to 3.5 |
| Nickel (Ni), % | 11 to 13 | |
| 19 to 21 |
| Niobium (Nb), % | 0 | |
| 0.75 to 1.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0 | |
| 0.75 to 1.3 |
| Tungsten (W), % | 0 | |
| 2.0 to 3.0 |
| Zinc (Zn), % | 17.9 to 29.2 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |