ASTM B540 Palladium vs. AISI 440C Stainless Steel
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while AISI 440C stainless steel belongs to the iron alloys. 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 ASTM B540 palladium and the bottom bar is AISI 440C stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 1.1 to 14 | |
| 2.0 to 14 |
| Fatigue Strength, MPa | 350 | |
| 260 to 840 |
| Poisson's Ratio | 0.38 | |
| 0.28 |
| Shear Modulus, GPa | 39 | |
| 76 |
| Shear Strength, MPa | 500 to 700 | |
| 430 to 1120 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 710 to 1970 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 450 to 1900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 280 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1480 |
| Melting Onset (Solidus), °C | 1020 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 480 |
| Thermal Expansion, µm/m-K | 14 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 2.8 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.7 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 39 to 88 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 12 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 26 to 71 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 23 to 46 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 26 to 71 |
Alloy Composition
| Carbon (C), % | 0 | |
| 1.0 to 1.2 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Copper (Cu), % | 13.5 to 14.5 | |
| 0 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 78 to 83.1 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.75 |
| Palladium (Pd), % | 34 to 36 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Platinum (Pt), % | 9.5 to 10.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Silver (Ag), % | 29 to 31 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |