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EN-MC35110 Magnesium vs. 8021 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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