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711.0 Aluminum vs. EN-MC21220 Magnesium

711.0 aluminum belongs to the aluminum alloys classification, while EN-MC21220 magnesium belongs to the magnesium 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 711.0 aluminum and the bottom bar is EN-MC21220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
58
Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 7.8
11
Fatigue Strength, MPa 100
89
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
17
Tensile Strength: Ultimate (UTS), MPa 220
210
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 610
540
Specific Heat Capacity, J/kg-K 860
1000
Thermal Conductivity, W/m-K 160
65
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
16
Electrical Conductivity: Equal Weight (Specific), % IACS 120
87

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 7.9
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
20
Resilience: Unit (Modulus of Resilience), kJ/m3 140
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
71
Strength to Weight: Axial, points 20
34
Strength to Weight: Bending, points 26
46
Thermal Diffusivity, mm2/s 61
39
Thermal Shock Resistance, points 9.3
12

Alloy Composition

Aluminum (Al), % 89.8 to 92.7
4.4 to 5.5
Copper (Cu), % 0.35 to 0.65
0 to 0.010
Iron (Fe), % 0.7 to 1.4
0 to 0.0050
Magnesium (Mg), % 0.25 to 0.45
93.5 to 95.5
Manganese (Mn), % 0 to 0.050
0.1 to 0.6
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.3
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.0 to 7.0
0 to 0.3
Residuals, % 0
0 to 0.010