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5449 Aluminum vs. ZE41A Magnesium

5449 aluminum belongs to the aluminum alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 5449 aluminum and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 4.0 to 17
3.3
Fatigue Strength, MPa 78 to 120
98
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 130 to 190
150
Tensile Strength: Ultimate (UTS), MPa 210 to 330
210
Tensile Strength: Yield (Proof), MPa 91 to 260
140

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 190
150
Melting Completion (Liquidus), °C 650
640
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
27

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
18
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.5
24
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 22 to 33
31
Strength to Weight: Bending, points 29 to 39
41
Thermal Diffusivity, mm2/s 56
59
Thermal Shock Resistance, points 9.4 to 15
12

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.6 to 2.6
91.7 to 95.4
Manganese (Mn), % 0.6 to 1.1
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.1
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.3
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3