ASTM B617 Coin Silver vs. ASTM B685 Alloy
Both ASTM B617 coin silver and ASTM B685 alloy are otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is ASTM B685 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 75 | |
| 120 |
| Poisson's Ratio | 0.37 | |
| 0.37 |
| Shear Modulus, GPa | 28 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 520 | |
| 660 to 1060 |
Thermal Properties
| Latent Heat of Fusion, J/g | 120 | |
| 180 |
| Melting Completion (Liquidus), °C | 870 | |
| 1230 |
| Melting Onset (Solidus), °C | 780 | |
| 1200 |
| Specific Heat Capacity, J/kg-K | 250 | |
| 300 |
| Thermal Expansion, µm/m-K | 19 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 83 | |
| 5.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 72 | |
| 4.1 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.1 | |
| 6.1 |
| Stiffness to Weight: Bending, points | 14 | |
| 15 |
| Strength to Weight: Axial, points | 7.7 to 14 | |
| 17 to 27 |
| Strength to Weight: Bending, points | 9.3 to 14 | |
| 16 to 21 |
| Thermal Shock Resistance, points | 14 to 25 | |
| 28 to 46 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 0 to 0.0050 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 to 0.050 |
| Copper (Cu), % | 9.0 to 10.4 | |
| 39.5 to 40.5 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 to 0.030 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 59 to 60.5 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Silver (Ag), % | 89.6 to 91 | |
| 0 to 0.1 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 to 0.060 |
| Residuals, % | 0 to 0.060 | |
| 0 to 0.2 |