ASTM B540 Palladium vs. SAE-AISI D4 Steel
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while SAE-AISI D4 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is SAE-AISI D4 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 1.1 to 14 | |
| 8.4 to 15 |
| Fatigue Strength, MPa | 350 | |
| 310 to 920 |
| Poisson's Ratio | 0.38 | |
| 0.28 |
| Shear Modulus, GPa | 39 | |
| 74 |
| Shear Strength, MPa | 500 to 700 | |
| 460 to 1210 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 760 to 2060 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 470 to 1540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 270 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1430 |
| Melting Onset (Solidus), °C | 1020 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 480 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 4.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 5.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.7 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 100 to 160 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 12 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 27 to 75 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 24 to 47 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 23 to 63 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 2.1 to 2.4 |
| Chromium (Cr), % | 0 | |
| 11 to 13 |
| Copper (Cu), % | 13.5 to 14.5 | |
| 0 to 0.25 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 80.6 to 86.3 |
| Manganese (Mn), % | 0 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 0 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.6 |
| Silver (Ag), % | 29 to 31 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 1.0 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |