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EN-MC21120 Magnesium vs. 2036 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 2036 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 2036 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
70
Elongation at Break, % 2.2 to 6.7
24
Fatigue Strength, MPa 84 to 96
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 110 to 160
210
Tensile Strength: Ultimate (UTS), MPa 200 to 270
340
Tensile Strength: Yield (Proof), MPa 130 to 170
200

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 600
650
Melting Onset (Solidus), °C 490
560
Specific Heat Capacity, J/kg-K 990
890
Thermal Conductivity, W/m-K 76
160
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
41
Electrical Conductivity: Equal Weight (Specific), % IACS 59
130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
2.9
Embodied Carbon, kg CO2/kg material 22
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
70
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
270
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
48
Strength to Weight: Axial, points 31 to 43
33
Strength to Weight: Bending, points 43 to 53
38
Thermal Diffusivity, mm2/s 44
62
Thermal Shock Resistance, points 11 to 16
15

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
94.4 to 97.4
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.030
2.2 to 3.0
Iron (Fe), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 88.6 to 91.3
0.3 to 0.6
Manganese (Mn), % 0.1 to 0.5
0.1 to 0.4
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
0 to 0.5
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0.35 to 1.0
0 to 0.25
Residuals, % 0
0 to 0.15