ASTM B540 Palladium vs. ASTM B541 Gold
Both ASTM B540 palladium and ASTM B541 gold are otherwise unclassified metals. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 ASTM B540 palladium and the bottom bar is ASTM B541 gold.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 1.1 to 14 | |
| 6.0 to 14 |
| Knoop Hardness | 230 to 380 | |
| 220 to 340 |
| Poisson's Ratio | 0.38 | |
| 0.4 |
| Shear Modulus, GPa | 39 | |
| 38 |
| Shear Strength, MPa | 500 to 700 | |
| 410 to 690 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 670 to 1180 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 480 to 900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 90 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1110 |
| Melting Onset (Solidus), °C | 1020 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 170 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 7.7 to 12 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 4.0 to 6.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 17 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 65 to 91 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 to 4660 | |
| 1090 to 3830 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 3.4 |
| Stiffness to Weight: Bending, points | 12 | |
| 9.0 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 11 to 19 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 9.8 to 14 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 36 to 63 |
Alloy Composition
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| Copper (Cu), % | 13.5 to 14.5 | |
| 13.5 to 15.5 |
| Gold (Au), % | 9.5 to 10.5 | |
| 70.5 to 72.5 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 8.0 to 9.0 |
| Silver (Ag), % | 29 to 31 | |
| 4.0 to 5.0 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0.7 to 1.3 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.4 |