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EN-MC21120 Magnesium vs. 383.0 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 383.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN-MC21120 magnesium and the bottom bar is 383.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63 to 75
75
Elastic (Young's, Tensile) Modulus, GPa 46
73
Elongation at Break, % 2.2 to 6.7
3.5
Fatigue Strength, MPa 84 to 96
150
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
28
Tensile Strength: Ultimate (UTS), MPa 200 to 270
280
Tensile Strength: Yield (Proof), MPa 130 to 170
150

Thermal Properties

Latent Heat of Fusion, J/g 350
540
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
580
Melting Onset (Solidus), °C 490
540
Specific Heat Capacity, J/kg-K 990
880
Thermal Conductivity, W/m-K 76
96
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
23
Electrical Conductivity: Equal Weight (Specific), % IACS 59
74

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
2.8
Embodied Carbon, kg CO2/kg material 22
7.5
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
150
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 31 to 43
28
Strength to Weight: Bending, points 43 to 53
34
Thermal Diffusivity, mm2/s 44
39
Thermal Shock Resistance, points 11 to 16
13

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
79.7 to 88.5
Copper (Cu), % 0 to 0.030
2.0 to 3.0
Iron (Fe), % 0 to 0.0050
0 to 1.3
Magnesium (Mg), % 88.6 to 91.3
0 to 0.1
Manganese (Mn), % 0.1 to 0.5
0 to 0.5
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Silicon (Si), % 0 to 0.2
9.5 to 11.5
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0.35 to 1.0
0 to 3.0
Residuals, % 0 to 0.010
0 to 0.5