ASTM B540 Palladium vs. AISI 420 Stainless Steel
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while AISI 420 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is AISI 420 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 1.1 to 14 | |
| 8.0 to 15 |
| Fatigue Strength, MPa | 350 | |
| 220 to 670 |
| Poisson's Ratio | 0.38 | |
| 0.28 |
| Shear Modulus, GPa | 39 | |
| 76 |
| Shear Strength, MPa | 500 to 700 | |
| 420 to 1010 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 690 to 1720 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 380 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 280 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1510 |
| Melting Onset (Solidus), °C | 1020 | |
| 1450 |
| 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 | |
| 3.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 3.5 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.7 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 88 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 to 4660 | |
| 380 to 4410 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 12 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 25 to 62 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 22 to 41 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 25 to 62 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.15 to 0.4 |
| Chromium (Cr), % | 0 | |
| 12 to 14 |
| Copper (Cu), % | 13.5 to 14.5 | |
| 0 |
| Gold (Au), % | 9.5 to 10.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 82.3 to 87.9 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 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 0.030 |
| Zinc (Zn), % | 0.8 to 1.2 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |