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EN-MC21120 Magnesium vs. 6061 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 6061 aluminum belongs to the aluminum alloys. There are 30 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 6061 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
69
Elongation at Break, % 2.2 to 6.7
3.4 to 20
Fatigue Strength, MPa 84 to 96
58 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 110 to 160
84 to 210
Tensile Strength: Ultimate (UTS), MPa 200 to 270
130 to 410
Tensile Strength: Yield (Proof), MPa 130 to 170
76 to 370

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
650
Melting Onset (Solidus), °C 490
580
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 76
170
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
43
Electrical Conductivity: Equal Weight (Specific), % IACS 59
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
3.8 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
42 to 1000
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 31 to 43
13 to 42
Strength to Weight: Bending, points 43 to 53
21 to 45
Thermal Diffusivity, mm2/s 44
68
Thermal Shock Resistance, points 11 to 16
5.7 to 18

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
95.9 to 98.6
Chromium (Cr), % 0
0.040 to 0.35
Copper (Cu), % 0 to 0.030
0.15 to 0.4
Iron (Fe), % 0 to 0.0050
0 to 0.7
Magnesium (Mg), % 88.6 to 91.3
0.8 to 1.2
Manganese (Mn), % 0.1 to 0.5
0 to 0.15
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
0.4 to 0.8
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0.35 to 1.0
0 to 0.25
Residuals, % 0 to 0.010
0 to 0.15

Comparable Variants