ASTM B540 Palladium vs. ASTM A225 Steel
ASTM B540 palladium belongs to the otherwise unclassified metals classification, while ASTM A225 steel belongs to the iron alloys. There are 23 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 ASTM A225 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 1.1 to 14 | |
| 21 to 23 |
| Fatigue Strength, MPa | 350 | |
| 330 to 390 |
| Poisson's Ratio | 0.38 | |
| 0.29 |
| Shear Modulus, GPa | 39 | |
| 73 |
| Shear Strength, MPa | 500 to 700 | |
| 390 to 520 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1240 | |
| 620 to 830 |
| Tensile Strength: Yield (Proof), MPa | 620 to 1000 | |
| 460 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 250 |
| Melting Completion (Liquidus), °C | 1220 | |
| 1460 |
| Melting Onset (Solidus), °C | 1020 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 470 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.9 to 5.5 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 to 3.9 | |
| 8.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 120 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1790 to 4660 | |
| 580 to 820 |
| Stiffness to Weight: Axial, points | 4.7 | |
| 13 |
| Stiffness to Weight: Bending, points | 12 | |
| 24 |
| Strength to Weight: Axial, points | 18 to 27 | |
| 22 to 29 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 21 to 25 |
| Thermal Shock Resistance, points | 41 to 61 | |
| 18 to 24 |