QE22A Magnesium vs. 7108 Aluminum
QE22A magnesium belongs to the magnesium alloys classification, while 7108 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is QE22A magnesium and the bottom bar is 7108 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 44 | |
| 69 |
| Elongation at Break, % | 2.4 | |
| 11 |
| Fatigue Strength, MPa | 110 | |
| 120 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 17 | |
| 26 |
| Shear Strength, MPa | 150 | |
| 210 |
| Tensile Strength: Ultimate (UTS), MPa | 250 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 190 | |
| 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 340 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 250 | |
| 210 |
| Melting Completion (Liquidus), °C | 640 | |
| 630 |
| Melting Onset (Solidus), °C | 570 | |
| 530 |
| Specific Heat Capacity, J/kg-K | 970 | |
| 880 |
| Thermal Conductivity, W/m-K | 110 | |
| 150 |
| Thermal Expansion, µm/m-K | 27 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 25 | |
| 39 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
| 120 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.0 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 27 | |
| 8.3 |
| Embodied Energy, MJ/kg | 220 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 5.5 | |
| 38 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 | |
| 620 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 60 | |
| 47 |
| Strength to Weight: Axial, points | 36 | |
| 34 |
| Strength to Weight: Bending, points | 46 | |
| 38 |
| Thermal Diffusivity, mm2/s | 59 | |
| 59 |
| Thermal Shock Resistance, points | 15 | |
| 16 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 92.4 to 94.7 |
| Copper (Cu), % | 0 to 0.1 | |
| 0 to 0.050 |
| Iron (Fe), % | 0 | |
| 0 to 0.1 |
| Magnesium (Mg), % | 93.1 to 95.8 | |
| 0.7 to 1.4 |
| Manganese (Mn), % | 0 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Silver (Ag), % | 2.0 to 3.0 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.050 |
| Unspecified Rare Earths, % | 1.8 to 2.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 4.5 to 5.5 |
| Zirconium (Zr), % | 0.4 to 1.0 | |
| 0.12 to 0.25 |
| Residuals, % | 0 | |
| 0 to 0.15 |