5449 Aluminum vs. ZK40A Magnesium
5449 aluminum belongs to the aluminum alloys classification, while ZK40A magnesium belongs to the magnesium alloys.
For each property being compared, the top bar is 5449 aluminum and the bottom bar is ZK40A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 69 | |
45 |
Elongation at Break, % | 4.0 to 17 | |
4.2 |
Fatigue Strength, MPa | 78 to 120 | |
190 |
Poisson's Ratio | 0.33 | |
0.29 |
Shear Modulus, GPa | 26 | |
17 |
Shear Strength, MPa | 130 to 190 | |
160 |
Tensile Strength: Ultimate (UTS), MPa | 210 to 330 | |
280 |
Tensile Strength: Yield (Proof), MPa | 91 to 260 | |
260 |
Thermal Properties
Latent Heat of Fusion, J/g | 400 | |
340 |
Maximum Temperature: Mechanical, °C | 190 | |
120 |
Melting Completion (Liquidus), °C | 650 | |
600 |
Melting Onset (Solidus), °C | 590 | |
540 |
Specific Heat Capacity, J/kg-K | 900 | |
970 |
Thermal Conductivity, W/m-K | 140 | |
110 |
Thermal Expansion, µm/m-K | 23 | |
26 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 35 | |
27 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
130 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.5 | |
13 |
Density, g/cm3 | 2.8 | |
1.8 |
Embodied Carbon, kg CO2/kg material | 8.5 | |
24 |
Embodied Energy, MJ/kg | 150 | |
160 |
Embodied Water, L/kg | 1180 | |
950 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 to 29 | |
12 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 60 to 480 | |
740 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 50 | |
65 |
Strength to Weight: Axial, points | 22 to 33 | |
43 |
Strength to Weight: Bending, points | 29 to 39 | |
53 |
Thermal Diffusivity, mm2/s | 56 | |
62 |
Thermal Shock Resistance, points | 9.4 to 15 | |
17 |
Alloy Composition
Aluminum (Al), % | 94.1 to 97.8 | |
0 |
Chromium (Cr), % | 0 to 0.3 | |
0 |
Copper (Cu), % | 0 to 0.3 | |
0 |
Iron (Fe), % | 0 to 0.7 | |
0 |
Magnesium (Mg), % | 1.6 to 2.6 | |
94.2 to 96.1 |
Manganese (Mn), % | 0.6 to 1.1 | |
0 |
Silicon (Si), % | 0 to 0.4 | |
0 |
Titanium (Ti), % | 0 to 0.1 | |
0 |
Zinc (Zn), % | 0 to 0.3 | |
3.5 to 4.5 |
Zirconium (Zr), % | 0 | |
0.45 to 1.0 |
Residuals, % | 0 | |
0 to 0.3 |