1070A Aluminum vs. EN-MC21220 Magnesium
1070A aluminum belongs to the aluminum alloys classification, while EN-MC21220 magnesium belongs to the magnesium alloys.
For each property being compared, the top bar is 1070A aluminum and the bottom bar is EN-MC21220 magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 18 to 40 | |
| 58 |
| Elastic (Young's, Tensile) Modulus, GPa | 68 | |
| 45 |
| Elongation at Break, % | 2.3 to 33 | |
| 11 |
| Fatigue Strength, MPa | 17 to 51 | |
| 89 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 26 | |
| 17 |
| Shear Strength, MPa | 44 to 81 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 68 to 140 | |
| 210 |
| Tensile Strength: Yield (Proof), MPa | 17 to 120 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 350 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 120 |
| Melting Completion (Liquidus), °C | 640 | |
| 600 |
| Melting Onset (Solidus), °C | 640 | |
| 540 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 1000 |
| Thermal Conductivity, W/m-K | 230 | |
| 65 |
| Thermal Expansion, µm/m-K | 23 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 60 | |
| 16 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 200 | |
| 87 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 12 |
| Density, g/cm3 | 2.7 | |
| 1.7 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 23 |
| Embodied Energy, MJ/kg | 150 | |
| 160 |
| Embodied Water, L/kg | 1200 | |
| 990 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 3.0 to 18 | |
| 20 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2.1 to 100 | |
| 160 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 50 | |
| 71 |
| Strength to Weight: Axial, points | 7.0 to 14 | |
| 34 |
| Strength to Weight: Bending, points | 14 to 22 | |
| 46 |
| Thermal Diffusivity, mm2/s | 94 | |
| 39 |
| Thermal Shock Resistance, points | 3.1 to 6.3 | |
| 12 |
Alloy Composition
| Aluminum (Al), % | 99.7 to 100 | |
| 4.4 to 5.5 |
| Copper (Cu), % | 0 to 0.030 | |
| 0 to 0.010 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 0 to 0.030 | |
| 93.5 to 95.5 |
| Manganese (Mn), % | 0 to 0.030 | |
| 0.1 to 0.6 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0020 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 0.1 |
| Titanium (Ti), % | 0 to 0.030 | |
| 0 |
| Zinc (Zn), % | 0 to 0.070 | |
| 0 to 0.3 |
| Residuals, % | 0 | |
| 0 to 0.010 |