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238.0 Aluminum vs. EN-MC21110 Magnesium

238.0 aluminum belongs to the aluminum alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys. There are 29 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 238.0 aluminum and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
46
Elongation at Break, % 1.5
2.8 to 6.7
Fatigue Strength, MPa 110
75 to 78
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Tensile Strength: Ultimate (UTS), MPa 210
200 to 270
Tensile Strength: Yield (Proof), MPa 170
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 430
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 510
500
Specific Heat Capacity, J/kg-K 840
990
Thermal Conductivity, W/m-K 100
80
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
12
Electrical Conductivity: Equal Weight (Specific), % IACS 67
61

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 3.4
1.7
Embodied Carbon, kg CO2/kg material 7.4
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1040
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 180
120 to 150
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 42
69
Strength to Weight: Axial, points 17
33 to 44
Strength to Weight: Bending, points 23
45 to 54
Thermal Diffusivity, mm2/s 37
47
Thermal Shock Resistance, points 9.1
12 to 16

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
7.0 to 8.7
Copper (Cu), % 9.5 to 10.5
0 to 0.030
Iron (Fe), % 1.0 to 1.5
0 to 0.0050
Magnesium (Mg), % 0 to 0.25
89.6 to 92.6
Manganese (Mn), % 0
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 3.6 to 4.4
0 to 0.2
Zinc (Zn), % 1.0 to 1.5
0.35 to 1.0
Residuals, % 0
0 to 0.010