ASTM B685 Alloy vs. 70Ag-30Ni Alloy
Both ASTM B685 alloy and 70Ag-30Ni alloy are otherwise unclassified metals.
For each property being compared, the top bar is ASTM B685 alloy and the bottom bar is 70Ag-30Ni alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 100 |
| Poisson's Ratio | 0.37 | |
| 0.35 |
| Shear Modulus, GPa | 43 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 1060 | |
| 320 to 530 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 170 |
| Melting Completion (Liquidus), °C | 1230 | |
| 960 |
| Melting Onset (Solidus), °C | 1200 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 300 | |
| 300 |
| Thermal Expansion, µm/m-K | 14 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 5.0 | |
| 69 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.1 | |
| 62 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 6.1 | |
| 5.8 |
| Stiffness to Weight: Bending, points | 15 | |
| 16 |
| Strength to Weight: Axial, points | 17 to 27 | |
| 8.8 to 15 |
| Strength to Weight: Bending, points | 16 to 21 | |
| 10 to 15 |
| Thermal Shock Resistance, points | 28 to 46 | |
| 13 to 21 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 39.5 to 40.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 28.8 to 31 |
| Palladium (Pd), % | 59 to 60.5 | |
| 0 |
| Silver (Ag), % | 0 to 0.1 | |
| 69 to 71 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.2 |