AM60A Magnesium vs. 2218 Aluminum
AM60A magnesium belongs to the magnesium alloys classification, while 2218 aluminum belongs to the aluminum alloys.
For each property being compared, the top bar is AM60A magnesium and the bottom bar is 2218 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 62 | |
| 95 to 110 |
| Elastic (Young's, Tensile) Modulus, GPa | 45 | |
| 73 |
| Elongation at Break, % | 8.8 | |
| 6.8 to 10 |
| Fatigue Strength, MPa | 70 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 18 | |
| 27 |
| Shear Strength, MPa | 130 | |
| 210 to 250 |
| Tensile Strength: Ultimate (UTS), MPa | 230 | |
| 330 to 430 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 260 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 220 |
| Melting Completion (Liquidus), °C | 620 | |
| 640 |
| Melting Onset (Solidus), °C | 550 | |
| 510 |
| Specific Heat Capacity, J/kg-K | 1000 | |
| 870 |
| Thermal Conductivity, W/m-K | 62 | |
| 140 |
| Thermal Expansion, µm/m-K | 26 | |
| 22 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 13 | |
| 37 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 69 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 11 |
| Density, g/cm3 | 1.7 | |
| 3.1 |
| Embodied Carbon, kg CO2/kg material | 23 | |
| 8.2 |
| Embodied Energy, MJ/kg | 160 | |
| 150 |
| Embodied Water, L/kg | 990 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 | |
| 27 to 31 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 | |
| 450 to 650 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 71 | |
| 45 |
| Strength to Weight: Axial, points | 37 | |
| 30 to 39 |
| Strength to Weight: Bending, points | 49 | |
| 34 to 41 |
| Thermal Diffusivity, mm2/s | 37 | |
| 52 |
| Thermal Shock Resistance, points | 14 | |
| 15 to 19 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.5 | |
| 88.8 to 93.6 |
| Chromium (Cr), % | 0 | |
| 0 to 0.1 |
| Copper (Cu), % | 0 to 0.35 | |
| 3.5 to 4.5 |
| Iron (Fe), % | 0 | |
| 0 to 1.0 |
| Magnesium (Mg), % | 91.8 to 94.4 | |
| 1.2 to 1.8 |
| Manganese (Mn), % | 0.13 to 0.6 | |
| 0 to 0.2 |
| Nickel (Ni), % | 0 to 0.030 | |
| 1.7 to 2.3 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.9 |
| Zinc (Zn), % | 0 to 0.22 | |
| 0 to 0.25 |
| Residuals, % | 0 | |
| 0 to 0.15 |