AS41B Magnesium vs. 7116 Aluminum
AS41B magnesium belongs to the magnesium alloys classification, while 7116 aluminum belongs to the aluminum alloys.
For each property being compared, the top bar is AS41B magnesium and the bottom bar is 7116 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 45 | |
| 69 |
| Elongation at Break, % | 6.0 | |
| 7.8 |
| Fatigue Strength, MPa | 97 | |
| 160 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 18 | |
| 26 |
| Shear Strength, MPa | 120 | |
| 220 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 370 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 110 | |
| 170 |
| Melting Completion (Liquidus), °C | 620 | |
| 640 |
| Melting Onset (Solidus), °C | 570 | |
| 520 |
| Specific Heat Capacity, J/kg-K | 1000 | |
| 880 |
| Thermal Conductivity, W/m-K | 68 | |
| 150 |
| Thermal Expansion, µm/m-K | 26 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 46 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 92 | |
| 140 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 9.5 |
| Density, g/cm3 | 1.7 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 23 | |
| 8.2 |
| Embodied Energy, MJ/kg | 160 | |
| 150 |
| Embodied Water, L/kg | 980 | |
| 1150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 11 | |
| 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 | |
| 790 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 72 | |
| 47 |
| Strength to Weight: Axial, points | 35 | |
| 35 |
| Strength to Weight: Bending, points | 47 | |
| 39 |
| Thermal Diffusivity, mm2/s | 41 | |
| 58 |
| Thermal Shock Resistance, points | 13 | |
| 16 |
Alloy Composition
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| Aluminum (Al), % | 3.5 to 5.0 | |
| 91.5 to 94.5 |
| Copper (Cu), % | 0 to 0.020 | |
| 0.5 to 1.1 |
| Gallium (Ga), % | 0 | |
| 0 to 0.030 |
| Iron (Fe), % | 0 to 0.0035 | |
| 0 to 0.3 |
| Magnesium (Mg), % | 92.7 to 95.7 | |
| 0.8 to 1.4 |
| Manganese (Mn), % | 0.35 to 0.7 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 to 0.0020 | |
| 0 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0 | |
| 0 to 0.050 |
| Vanadium (V), % | 0 | |
| 0 to 0.050 |
| Zinc (Zn), % | 0 to 0.12 | |
| 4.2 to 5.2 |
| Residuals, % | 0 | |
| 0 to 0.15 |