ASTM B477 Au-Ni-Ag vs. 70Ag-30Ni Alloy
Both ASTM B477 Au-Ni-Ag and 70Ag-30Ni alloy are otherwise unclassified metals. They have a modest 25% 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 (3, in this case) are not shown.
For each property being compared, the top bar is ASTM B477 Au-Ni-Ag and the bottom bar is 70Ag-30Ni alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 100 |
| Poisson's Ratio | 0.41 | |
| 0.35 |
| Shear Modulus, GPa | 34 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 320 to 530 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 170 |
| Melting Completion (Liquidus), °C | 1010 | |
| 960 |
| Melting Onset (Solidus), °C | 930 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 300 |
| Thermal Expansion, µm/m-K | 15 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 69 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.5 | |
| 62 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 5.8 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 16 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 8.8 to 15 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 10 to 15 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 13 to 21 |
Alloy Composition
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| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 28.8 to 31 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 69 to 71 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.2 |