ASTM B780 Alloy vs. Commercially Pure Silver
Both ASTM B780 alloy and commercially pure silver are otherwise unclassified metals. They have 75% of their average alloy composition in common. There are 17 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is commercially pure silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 71 |
| Elongation at Break, % | 1.1 to 9.1 | |
| 1.1 to 29 |
| Poisson's Ratio | 0.36 | |
| 0.37 |
| Shear Modulus, GPa | 30 | |
| 26 |
| Shear Strength, MPa | 200 to 340 | |
| 120 to 190 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 590 | |
| 190 to 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 110 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 240 |
| Thermal Expansion, µm/m-K | 18 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 70 to 76 | |
| 100 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 62 to 68 | |
| 87 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.5 | |
| 3.8 |
| Stiffness to Weight: Bending, points | 14 | |
| 13 |
| Strength to Weight: Axial, points | 9.1 to 16 | |
| 4.9 to 8.9 |
| Strength to Weight: Bending, points | 11 to 15 | |
| 6.9 to 10 |
| Thermal Shock Resistance, points | 16 to 29 | |
| 9.5 to 17 |
Alloy Composition
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| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 23.5 to 25.7 | |
| 0 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Nickel (Ni), % | 0.35 to 0.65 | |
| 0 |
| Silver (Ag), % | 74 to 76 | |
| 99.9 to 100 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.1 |