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EN-MC21120 Magnesium vs. 2011 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 2011 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN-MC21120 magnesium and the bottom bar is 2011 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
71
Elongation at Break, % 2.2 to 6.7
8.5 to 18
Fatigue Strength, MPa 84 to 96
74 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Shear Strength, MPa 110 to 160
190 to 250
Tensile Strength: Ultimate (UTS), MPa 200 to 270
310 to 420
Tensile Strength: Yield (Proof), MPa 130 to 170
140 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 490
540
Specific Heat Capacity, J/kg-K 990
870
Thermal Conductivity, W/m-K 76
140 to 170
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
35 to 45
Electrical Conductivity: Equal Weight (Specific), % IACS 59
100 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
3.1
Embodied Carbon, kg CO2/kg material 22
7.9
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
29 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
140 to 680
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
44
Strength to Weight: Axial, points 31 to 43
27 to 37
Strength to Weight: Bending, points 43 to 53
32 to 40
Thermal Diffusivity, mm2/s 44
51 to 64
Thermal Shock Resistance, points 11 to 16
14 to 19

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
91.3 to 94.6
Bismuth (Bi), % 0
0.2 to 0.6
Copper (Cu), % 0 to 0.030
5.0 to 6.0
Iron (Fe), % 0 to 0.0050
0 to 0.7
Lead (Pb), % 0
0.2 to 0.6
Magnesium (Mg), % 88.6 to 91.3
0
Manganese (Mn), % 0.1 to 0.5
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
0 to 0.4
Zinc (Zn), % 0.35 to 1.0
0 to 0.3
Residuals, % 0
0 to 0.15

Comparable Variants