Quarter-hard ASTM B780 Alloy vs. Quarter-hard Palladium
Both quarter-hard ASTM B780 alloy and quarter-hard palladium are otherwise unclassified metals. Both are furnished in the quarter-hard temper. There are 18 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is quarter-hard ASTM B780 alloy and the bottom bar is quarter-hard palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 120 |
| Elongation at Break, % | 4.6 | |
| 2.2 |
| Poisson's Ratio | 0.36 | |
| 0.39 |
| Shear Modulus, GPa | 30 | |
| 43 |
| Shear Strength, MPa | 230 | |
| 170 |
| Tensile Strength: Ultimate (UTS), MPa | 410 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 160 |
| Melting Completion (Liquidus), °C | 860 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 240 |
| Thermal Expansion, µm/m-K | 18 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 74 | |
| 16 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 66 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 12 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.5 | |
| 5.6 |
| Stiffness to Weight: Bending, points | 14 | |
| 14 |
| Strength to Weight: Axial, points | 11 | |
| 7.1 |
| Strength to Weight: Bending, points | 12 | |
| 8.4 |
| Thermal Shock Resistance, points | 20 | |
| 15 |
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 |
| Palladium (Pd), % | 0 | |
| 99.8 to 100 |
| Silver (Ag), % | 74 to 76 | |
| 0 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.2 |