AZ91E Magnesium vs. Commercially Pure Palladium
AZ91E magnesium belongs to the magnesium alloys classification, while commercially pure palladium belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is AZ91E magnesium and the bottom bar is commercially pure palladium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 120 |
| Elongation at Break, % | 2.5 to 6.2 | |
| 1.1 to 11 |
| Poisson's Ratio | 0.29 | |
| 0.39 |
| Shear Modulus, GPa | 18 | |
| 43 |
| Shear Strength, MPa | 89 to 150 | |
| 120 to 200 |
| Tensile Strength: Ultimate (UTS), MPa | 160 to 260 | |
| 200 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 160 |
| Melting Completion (Liquidus), °C | 600 | |
| 1550 |
| Melting Onset (Solidus), °C | 500 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 990 | |
| 240 |
| Thermal Expansion, µm/m-K | 27 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 10 to 12 | |
| 16 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 52 to 60 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.7 | |
| 12 |
Common Calculations
| Stiffness to Weight: Axial, points | 15 | |
| 5.6 |
| Stiffness to Weight: Bending, points | 69 | |
| 14 |
| Strength to Weight: Axial, points | 25 to 42 | |
| 4.5 to 8.8 |
| Strength to Weight: Bending, points | 37 to 53 | |
| 6.2 to 9.7 |
| Thermal Shock Resistance, points | 9.0 to 15 | |
| 9.8 to 19 |
Alloy Composition
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| Aluminum (Al), % | 8.1 to 9.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.0050 | |
| 0 |
| Magnesium (Mg), % | 88.8 to 91.3 | |
| 0 |
| Manganese (Mn), % | 0.17 to 0.35 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0010 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 99.8 to 100 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 |
| Zinc (Zn), % | 0.4 to 1.0 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.2 |