ASTM B596 Au-Cu vs. ASTM B540 Palladium
Both ASTM B596 Au-Cu and ASTM B540 palladium are otherwise unclassified metals. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is ASTM B540 palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 4.3 to 17 | |
| 1.1 to 14 |
| Poisson's Ratio | 0.41 | |
| 0.38 |
| Shear Modulus, GPa | 36 | |
| 39 |
| Shear Strength, MPa | 280 to 360 | |
| 500 to 700 |
| Tensile Strength: Ultimate (UTS), MPa | 450 to 620 | |
| 830 to 1240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 140 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1220 |
| Melting Onset (Solidus), °C | 930 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 150 | |
| 240 |
| Thermal Expansion, µm/m-K | 14 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 4.9 to 5.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.7 | |
| 3.5 to 3.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 18 | |
| 13 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 4.7 |
| Stiffness to Weight: Bending, points | 8.5 | |
| 12 |
| Strength to Weight: Axial, points | 6.8 to 9.4 | |
| 18 to 27 |
| Strength to Weight: Bending, points | 7.1 to 8.8 | |
| 15 to 20 |
| Thermal Shock Resistance, points | 22 to 30 | |
| 41 to 61 |
Alloy Composition
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| Copper (Cu), % | 9.0 to 11 | |
| 13.5 to 14.5 |
| Gold (Au), % | 89 to 91 | |
| 9.5 to 10.5 |
| Palladium (Pd), % | 0 | |
| 34 to 36 |
| Platinum (Pt), % | 0 | |
| 9.5 to 10.5 |
| Silver (Ag), % | 0 | |
| 29 to 31 |
| Zinc (Zn), % | 0 | |
| 0.8 to 1.2 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.3 |