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EN-MC65120 Magnesium vs. 324.0 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 324.0 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-MC65120 magnesium and the bottom bar is 324.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 3.1
3.0 to 4.0
Fatigue Strength, MPa 80
77 to 89
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 160
210 to 310
Tensile Strength: Yield (Proof), MPa 110
110 to 270

Thermal Properties

Latent Heat of Fusion, J/g 330
500
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
610
Melting Onset (Solidus), °C 520
550
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
34
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 25
7.9
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1090

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
6.8 to 8.9
Resilience: Unit (Modulus of Resilience), kJ/m3 140
85 to 510
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
52
Strength to Weight: Axial, points 23
22 to 32
Strength to Weight: Bending, points 34
29 to 38
Thermal Diffusivity, mm2/s 56
62
Thermal Shock Resistance, points 9.8
9.7 to 14

Alloy Composition

Aluminum (Al), % 0
87.3 to 92.2
Copper (Cu), % 0 to 0.030
0.4 to 0.6
Iron (Fe), % 0 to 0.010
0 to 1.2
Magnesium (Mg), % 91.8 to 95.1
0.4 to 0.7
Manganese (Mn), % 0 to 0.15
0 to 0.5
Nickel (Ni), % 0 to 0.0050
0 to 0.3
Silicon (Si), % 0 to 0.010
7.0 to 8.0
Titanium (Ti), % 0
0 to 0.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 1.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.2