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EN-MC32110 Magnesium vs. 4045 Aluminum

EN-MC32110 magnesium belongs to the magnesium alloys classification, while 4045 aluminum belongs to the aluminum alloys. There are 30 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-MC32110 magnesium and the bottom bar is 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 49
71
Elongation at Break, % 2.2
2.3
Fatigue Strength, MPa 80
45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
27
Shear Strength, MPa 120
69
Tensile Strength: Ultimate (UTS), MPa 220
120
Tensile Strength: Yield (Proof), MPa 140
64

Thermal Properties

Latent Heat of Fusion, J/g 330
540
Maximum Temperature: Mechanical, °C 99
160
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 500
580
Specific Heat Capacity, J/kg-K 950
900
Thermal Conductivity, W/m-K 120
170
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
45
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 2.1
2.6
Embodied Carbon, kg CO2/kg material 22
7.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 920
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 210
29
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 58
54
Strength to Weight: Axial, points 29
13
Strength to Weight: Bending, points 38
21
Thermal Diffusivity, mm2/s 58
74
Thermal Shock Resistance, points 12
5.7

Alloy Composition


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Aluminum (Al), % 0 to 0.2
87.4 to 91
Copper (Cu), % 2.4 to 3.0
0 to 0.3
Iron (Fe), % 0 to 0.050
0 to 0.8
Magnesium (Mg), % 89.3 to 91.9
0 to 0.050
Manganese (Mn), % 0.25 to 0.75
0 to 0.050
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
9.0 to 11
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 5.5 to 6.5
0 to 0.1
Residuals, % 0 to 0.010
0 to 0.15