ASTM B540 Palladium vs. C71640 Copper-nickel
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while C71640 copper-nickel belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is C71640 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 140 |
| Poisson's Ratio | 0.38 | |
| 0.33 |
| Shear Modulus, GPa | 39 | |
| 52 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 490 to 630 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 190 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 240 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1180 |
| Melting Onset (Solidus), °C | 1020 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 410 |
| Thermal Expansion, µm/m-K | 14 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 7.1 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 8.9 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 to 4660 | |
| 130 to 750 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 8.7 |
| Stiffness to Weight: Bending, points | 12 | |
| 20 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 15 to 20 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 16 to 18 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 16 to 21 |
Alloy Composition
| Copper (Cu), % | 13.5 to 14.5 | |
| 61.7 to 67.8 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 1.7 to 2.3 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 | |
| 1.5 to 2.5 |
| Nickel (Ni), % | 0 | |
| 29 to 32 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 0 |
| Silver (Ag), % | 29 to 31 | |
| 0 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0 to 1.0 |
| Residuals, % | 0 | |
| 0 to 0.5 |