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EN-MC65120 Magnesium vs. B390.0 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while B390.0 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-MC65120 magnesium and the bottom bar is B390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
76
Elongation at Break, % 3.1
0.88
Fatigue Strength, MPa 80
170
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
29
Tensile Strength: Ultimate (UTS), MPa 160
320
Tensile Strength: Yield (Proof), MPa 110
250

Thermal Properties

Latent Heat of Fusion, J/g 330
640
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
580
Melting Onset (Solidus), °C 520
580
Specific Heat Capacity, J/kg-K 970
880
Thermal Conductivity, W/m-K 100
130
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 120
88

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 25
7.3
Embodied Energy, MJ/kg 190
130
Embodied Water, L/kg 930
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 140
410
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
51
Strength to Weight: Axial, points 23
32
Strength to Weight: Bending, points 34
38
Thermal Diffusivity, mm2/s 56
55
Thermal Shock Resistance, points 9.8
15

Alloy Composition

Aluminum (Al), % 0
72.7 to 79.6
Copper (Cu), % 0 to 0.030
4.0 to 5.0
Iron (Fe), % 0 to 0.010
0 to 1.3
Magnesium (Mg), % 91.8 to 95.1
0.45 to 0.65
Manganese (Mn), % 0 to 0.15
0 to 0.5
Nickel (Ni), % 0 to 0.0050
0 to 0.1
Silicon (Si), % 0 to 0.010
16 to 18
Titanium (Ti), % 0
0 to 0.1
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 1.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.2