Annealed 70Ag-30Ni Alloy vs. Annealed R30035 Cobalt
Annealed 70Ag-30Ni alloy belongs to the otherwise unclassified metals classification, while annealed R30035 cobalt belongs to the cobalt alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is annealed 70Ag-30Ni alloy and the bottom bar is annealed R30035 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 220 |
| Poisson's Ratio | 0.35 | |
| 0.29 |
| Shear Modulus, GPa | 39 | |
| 84 |
| Tensile Strength: Ultimate (UTS), MPa | 320 | |
| 900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 320 |
| Melting Completion (Liquidus), °C | 960 | |
| 1440 |
| Melting Onset (Solidus), °C | 960 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 300 | |
| 440 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 69 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 62 | |
| 1.8 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 8.7 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 16 | |
| 23 |
| Strength to Weight: Axial, points | 8.8 | |
| 29 |
| Strength to Weight: Bending, points | 10 | |
| 24 |
| Thermal Shock Resistance, points | 13 | |
| 23 |
Alloy Composition
| Boron (B), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0 | |
| 0 to 0.025 |
| Chromium (Cr), % | 0 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 29.1 to 39 |
| Iron (Fe), % | 0 | |
| 0 to 1.0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.15 |
| Molybdenum (Mo), % | 0 | |
| 9.0 to 10.5 |
| Nickel (Ni), % | 28.8 to 31 | |
| 33 to 37 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 | |
| 0 to 0.15 |
| Silver (Ag), % | 69 to 71 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.2 | |
| 0 |