ASTM B540 Palladium vs. Automotive Malleable Cast Iron
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while automotive malleable cast iron belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is automotive malleable cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 180 |
| Elongation at Break, % | 1.1 to 14 | |
| 1.0 to 10 |
| Poisson's Ratio | 0.38 | |
| 0.29 |
| Shear Modulus, GPa | 39 | |
| 70 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 350 to 720 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 220 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 260 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1410 |
| Melting Onset (Solidus), °C | 1020 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 480 |
| Thermal Expansion, µm/m-K | 14 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 8.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.6 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 6.8 to 30 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 to 4660 | |
| 130 to 950 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 13 |
| Stiffness to Weight: Bending, points | 12 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 13 to 26 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 14 to 24 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 9.9 to 21 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 2.2 to 2.9 |
| Copper (Cu), % | 13.5 to 14.5 | |
| 0 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 93.6 to 96.7 |
| Manganese (Mn), % | 0 | |
| 0.15 to 1.3 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0.020 to 0.15 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.9 to 1.9 |
| Silver (Ag), % | 29 to 31 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0.020 to 0.2 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |