Annealed ASTM B685 Alloy vs. Annealed Palladium
Both annealed ASTM B685 alloy and annealed palladium are otherwise unclassified metals. Both are furnished in the annealed condition. They have 60% of their average alloy composition in common.
For each property being compared, the top bar is annealed ASTM B685 alloy and the bottom bar is annealed palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 120 |
| Elongation at Break, % | 23 | |
| 11 |
| Knoop Hardness | 160 | |
| 68 |
| Poisson's Ratio | 0.37 | |
| 0.39 |
| Shear Modulus, GPa | 43 | |
| 43 |
| Shear Strength, MPa | 410 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 660 | |
| 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 160 |
| Melting Completion (Liquidus), °C | 1230 | |
| 1550 |
| Melting Onset (Solidus), °C | 1200 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 300 | |
| 240 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 5.0 | |
| 16 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.1 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 12 |
Common Calculations
| Stiffness to Weight: Axial, points | 6.1 | |
| 5.6 |
| Stiffness to Weight: Bending, points | 15 | |
| 14 |
| Strength to Weight: Axial, points | 17 | |
| 4.5 |
| Strength to Weight: Bending, points | 16 | |
| 6.2 |
| Thermal Shock Resistance, points | 28 | |
| 9.8 |
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 |
| Palladium (Pd), % | 59 to 60.5 | |
| 99.8 to 100 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.2 |