Ductile Cast Iron vs. ASTM B540 Palladium
Ductile cast iron belongs to the iron alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is ASTM B540 palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 110 |
| Elongation at Break, % | 2.1 to 20 | |
| 1.1 to 14 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.38 |
| Shear Modulus, GPa | 64 to 70 | |
| 39 |
| Shear Strength, MPa | 420 to 800 | |
| 500 to 700 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 830 to 1240 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 620 to 1000 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 140 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1220 |
| Melting Onset (Solidus), °C | 1120 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 240 |
| Thermal Expansion, µm/m-K | 11 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 4.9 to 5.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.4 | |
| 3.5 to 3.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.1 to 7.5 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 13 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 1330 | |
| 1790 to 4660 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 4.7 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 12 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 18 to 27 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 15 to 20 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 41 to 61 |
Alloy Composition
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| Carbon (C), % | 3.0 to 3.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 13.5 to 14.5 |
| Gold (Au), % | 0 | |
| 9.5 to 10.5 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 34 to 36 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 |
| Platinum (Pt), % | 0 | |
| 9.5 to 10.5 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0 |
| Silver (Ag), % | 0 | |
| 29 to 31 |
| Zinc (Zn), % | 0 | |
| 0.8 to 1.2 |
| Residuals, % | 0 | |
| 0 to 0.3 |