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EN-MC65220 Magnesium vs. 5449 Aluminum

EN-MC65220 magnesium belongs to the magnesium alloys classification, while 5449 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN-MC65220 magnesium and the bottom bar is 5449 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 2.2
4.0 to 17
Fatigue Strength, MPa 110
78 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
130 to 190
Tensile Strength: Ultimate (UTS), MPa 270
210 to 330
Tensile Strength: Yield (Proof), MPa 200
91 to 260

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 610
650
Melting Onset (Solidus), °C 550
590
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
140
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
35
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 80
9.5
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 27
8.5
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
12 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 450
60 to 480
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
50
Strength to Weight: Axial, points 40
22 to 33
Strength to Weight: Bending, points 49
29 to 39
Thermal Diffusivity, mm2/s 61
56
Thermal Shock Resistance, points 17
9.4 to 15

Alloy Composition


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Aluminum (Al), % 0
94.1 to 97.8
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0.050 to 0.1
0 to 0.3
Iron (Fe), % 0 to 0.010
0 to 0.7
Magnesium (Mg), % 93.8 to 96.8
1.6 to 2.6
Manganese (Mn), % 0 to 0.15
0.6 to 1.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.4
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.1
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.3
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15