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EN-MC21120 Magnesium vs. 354.0 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 354.0 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-MC21120 magnesium and the bottom bar is 354.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
71
Elongation at Break, % 2.2 to 6.7
2.4 to 3.0
Fatigue Strength, MPa 84 to 96
92 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Tensile Strength: Ultimate (UTS), MPa 200 to 270
360 to 380
Tensile Strength: Yield (Proof), MPa 130 to 170
280 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
530
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 490
550
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 76
130
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
32
Electrical Conductivity: Equal Weight (Specific), % IACS 59
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
7.8
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
8.6 to 9.8
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
540 to 670
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 69
52
Strength to Weight: Axial, points 31 to 43
37 to 39
Strength to Weight: Bending, points 43 to 53
42 to 44
Thermal Diffusivity, mm2/s 44
52
Thermal Shock Resistance, points 11 to 16
17 to 18

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
87.3 to 89.4
Copper (Cu), % 0 to 0.030
1.6 to 2.0
Iron (Fe), % 0 to 0.0050
0 to 0.2
Magnesium (Mg), % 88.6 to 91.3
0.4 to 0.6
Manganese (Mn), % 0.1 to 0.5
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
8.6 to 9.4
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0.35 to 1.0
0 to 0.1
Residuals, % 0 to 0.010
0 to 0.15