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8021 Aluminum vs. EN-MC35110 Magnesium

8021 aluminum belongs to the aluminum alloys classification, while EN-MC35110 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 8021 aluminum and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 2.3
3.1
Fatigue Strength, MPa 61
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 160
230
Tensile Strength: Yield (Proof), MPa 130
150

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 640
520
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 220
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
27
Electrical Conductivity: Equal Weight (Specific), % IACS 180
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
18
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.1
24
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 130
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
63
Strength to Weight: Axial, points 16
34
Strength to Weight: Bending, points 23
44
Thermal Diffusivity, mm2/s 88
61
Thermal Shock Resistance, points 7.0
14

Alloy Composition

Aluminum (Al), % 98 to 98.8
0
Copper (Cu), % 0 to 0.050
0 to 0.030
Iron (Fe), % 1.2 to 1.7
0 to 0.010
Magnesium (Mg), % 0
92 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.15
0 to 0.010
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010