70Ag-30Ni Alloy vs. ASTM B477 Au-Ni-Ag
Both 70Ag-30Ni alloy and ASTM B477 Au-Ni-Ag 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 70Ag-30Ni alloy and the bottom bar is ASTM B477 Au-Ni-Ag.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 95 |
| Poisson's Ratio | 0.35 | |
| 0.41 |
| Shear Modulus, GPa | 39 | |
| 34 |
| Tensile Strength: Ultimate (UTS), MPa | 320 to 530 | |
| 310 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 80 |
| Melting Completion (Liquidus), °C | 960 | |
| 1010 |
| Melting Onset (Solidus), °C | 960 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 300 | |
| 160 |
| Thermal Expansion, µm/m-K | 17 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 69 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 62 | |
| 7.5 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.8 | |
| 3.1 |
| Stiffness to Weight: Bending, points | 16 | |
| 8.9 |
| Strength to Weight: Axial, points | 8.8 to 15 | |
| 5.0 to 9.0 |
| Strength to Weight: Bending, points | 10 to 15 | |
| 6.0 to 8.8 |
| Thermal Shock Resistance, points | 13 to 21 | |
| 16 to 28 |
Alloy Composition
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| Gold (Au), % | 0 | |
| 74.2 to 75.8 |
| Nickel (Ni), % | 28.8 to 31 | |
| 2.6 to 3.4 |
| Silver (Ag), % | 69 to 71 | |
| 21.4 to 22.6 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.3 |