EN AC-21100 Aluminum vs. ZK61A Magnesium
EN AC-21100 aluminum belongs to the aluminum alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is ZK61A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 46 |
| Elongation at Break, % | 6.2 to 7.3 | |
| 5.8 to 7.1 |
| Fatigue Strength, MPa | 79 to 87 | |
| 120 to 140 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 27 | |
| 18 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 350 | |
| 290 to 310 |
| Tensile Strength: Yield (Proof), MPa | 210 to 240 | |
| 180 to 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 120 |
| Melting Completion (Liquidus), °C | 670 | |
| 640 |
| Melting Onset (Solidus), °C | 550 | |
| 530 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 960 |
| Thermal Conductivity, W/m-K | 130 | |
| 120 |
| Thermal Expansion, µm/m-K | 23 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 34 | |
| 29 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 130 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 13 |
| Density, g/cm3 | 3.0 | |
| 1.9 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 23 |
| Embodied Energy, MJ/kg | 150 | |
| 160 |
| Embodied Water, L/kg | 1150 | |
| 940 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 21 | |
| 15 to 19 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 400 | |
| 370 to 420 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 62 |
| Strength to Weight: Axial, points | 31 to 33 | |
| 42 to 45 |
| Strength to Weight: Bending, points | 36 to 37 | |
| 50 to 53 |
| Thermal Diffusivity, mm2/s | 48 | |
| 65 |
| Thermal Shock Resistance, points | 15 | |
| 17 to 18 |
Alloy Composition
| Aluminum (Al), % | 93.4 to 95.7 | |
| 0 |
| Copper (Cu), % | 4.2 to 5.2 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.19 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 92.1 to 93.9 |
| Manganese (Mn), % | 0 to 0.55 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.18 | |
| 0 |
| Titanium (Ti), % | 0.15 to 0.3 | |
| 0 |
| Zinc (Zn), % | 0 to 0.070 | |
| 5.5 to 6.5 |
| Zirconium (Zr), % | 0 | |
| 0.6 to 1.0 |
| Residuals, % | 0 | |
| 0 to 0.3 |