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A380.0 Aluminum vs. EN-MC21220 Magnesium

A380.0 aluminum belongs to the aluminum alloys classification, while EN-MC21220 magnesium belongs to the magnesium alloys. There are 31 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 A380.0 aluminum and the bottom bar is EN-MC21220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
58
Elastic (Young's, Tensile) Modulus, GPa 73
45
Elongation at Break, % 3.3
11
Fatigue Strength, MPa 140
89
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 190
120
Tensile Strength: Ultimate (UTS), MPa 290
210
Tensile Strength: Yield (Proof), MPa 160
120

Thermal Properties

Latent Heat of Fusion, J/g 510
350
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 590
600
Melting Onset (Solidus), °C 550
540
Specific Heat Capacity, J/kg-K 870
1000
Thermal Conductivity, W/m-K 96
65
Thermal Expansion, µm/m-K 22
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
16
Electrical Conductivity: Equal Weight (Specific), % IACS 78
87

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 7.5
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1040
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
20
Resilience: Unit (Modulus of Resilience), kJ/m3 180
160
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 48
71
Strength to Weight: Axial, points 28
34
Strength to Weight: Bending, points 34
46
Thermal Diffusivity, mm2/s 38
39
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
4.4 to 5.5
Copper (Cu), % 3.0 to 4.0
0 to 0.010
Iron (Fe), % 0 to 1.3
0 to 0.0050
Magnesium (Mg), % 0 to 0.1
93.5 to 95.5
Manganese (Mn), % 0 to 0.5
0.1 to 0.6
Nickel (Ni), % 0 to 0.5
0 to 0.0020
Silicon (Si), % 7.5 to 9.5
0 to 0.1
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0 to 0.3
Residuals, % 0
0 to 0.010