ASTM B541 Gold vs. ASTM B563 Pd-Ag-Cu
Both ASTM B541 gold and ASTM B563 Pd-Ag-Cu 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 20 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is ASTM B541 gold and the bottom bar is ASTM B563 Pd-Ag-Cu.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 100 |
| Elongation at Break, % | 6.0 to 14 | |
| 7.0 to 17 |
| Knoop Hardness | 220 to 340 | |
| 210 to 350 |
| Poisson's Ratio | 0.4 | |
| 0.37 |
| Shear Modulus, GPa | 38 | |
| 37 |
| Shear Strength, MPa | 410 to 690 | |
| 470 to 690 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 1180 | |
| 760 to 1170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 90 | |
| 150 |
| Melting Completion (Liquidus), °C | 1110 | |
| 1180 |
| Melting Onset (Solidus), °C | 930 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 170 | |
| 260 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 to 12 | |
| 5.6 to 6.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.0 to 6.2 | |
| 4.6 to 5.5 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.4 | |
| 5.2 |
| Stiffness to Weight: Bending, points | 9.0 | |
| 14 |
| Strength to Weight: Axial, points | 11 to 19 | |
| 19 to 30 |
| Strength to Weight: Bending, points | 9.8 to 14 | |
| 17 to 22 |
| Thermal Shock Resistance, points | 36 to 63 | |
| 39 to 61 |
Alloy Composition
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| Copper (Cu), % | 13.5 to 15.5 | |
| 15.5 to 16.5 |
| Gold (Au), % | 70.5 to 72.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0.8 to 1.2 |
| Palladium (Pd), % | 0 | |
| 43 to 45 |
| Platinum (Pt), % | 8.0 to 9.0 | |
| 0.8 to 1.2 |
| Silver (Ag), % | 4.0 to 5.0 | |
| 37 to 39 |
| Zinc (Zn), % | 0.7 to 1.3 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.4 |