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EN-MC21120 Magnesium vs. 2011A Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 2011A 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 2011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
70
Elongation at Break, % 2.2 to 6.7
6.8 to 16
Fatigue Strength, MPa 84 to 96
75 to 100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 110 to 160
190 to 250
Tensile Strength: Ultimate (UTS), MPa 200 to 270
310 to 410
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
660
Melting Onset (Solidus), °C 490
550
Specific Heat Capacity, J/kg-K 990
870
Thermal Conductivity, W/m-K 76
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
33
Electrical Conductivity: Equal Weight (Specific), % IACS 59
96

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
20 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
140 to 670
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
44
Strength to Weight: Axial, points 31 to 43
28 to 37
Strength to Weight: Bending, points 43 to 53
33 to 40
Thermal Diffusivity, mm2/s 44
49
Thermal Shock Resistance, points 11 to 16
14 to 18

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
91.5 to 95.1
Bismuth (Bi), % 0
0.2 to 0.6
Copper (Cu), % 0 to 0.030
4.5 to 6.0
Iron (Fe), % 0 to 0.0050
0 to 0.5
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 to 0.010
0 to 0.15

Comparable Variants