ASTM B540 Palladium vs. Zamak 5
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while Zamak 5 belongs to the zinc alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is Zamak 5.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 87 |
| Elongation at Break, % | 1.1 to 14 | |
| 6.3 |
| Fatigue Strength, MPa | 350 | |
| 56 |
| Knoop Hardness | 230 to 380 | |
| 120 |
| Poisson's Ratio | 0.38 | |
| 0.25 |
| Shear Modulus, GPa | 39 | |
| 33 |
| Shear Strength, MPa | 500 to 700 | |
| 260 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 330 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 120 |
| Melting Completion (Liquidus), °C | 1220 | |
| 390 |
| Melting Onset (Solidus), °C | 1020 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 410 |
| Thermal Expansion, µm/m-K | 14 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 26 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 37 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 6.4 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 19 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 to 4660 | |
| 330 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 12 | |
| 23 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 14 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 16 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 9.9 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 3.5 to 4.3 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0050 |
| Copper (Cu), % | 13.5 to 14.5 | |
| 0.7 to 1.3 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 0 | |
| 0.025 to 0.080 |
| Nickel (Ni), % | 0 | |
| 0 to 0.020 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.030 |
| Silver (Ag), % | 29 to 31 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 94.3 to 95.7 |
| Residuals, % | 0 to 0.3 | |
| 0 |