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EN-MC65120 Magnesium vs. EN AC-46400 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while EN AC-46400 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN-MC65120 magnesium and the bottom bar is EN AC-46400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
77 to 120
Elastic (Young's, Tensile) Modulus, GPa 45
72
Elongation at Break, % 3.1
1.1 to 1.7
Fatigue Strength, MPa 80
75 to 85
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 160
170 to 310
Tensile Strength: Yield (Proof), MPa 110
110 to 270

Thermal Properties

Latent Heat of Fusion, J/g 330
520
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
610
Melting Onset (Solidus), °C 520
570
Specific Heat Capacity, J/kg-K 970
890
Thermal Conductivity, W/m-K 100
130
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
33
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 25
7.8
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
1.7 to 4.9
Resilience: Unit (Modulus of Resilience), kJ/m3 140
82 to 500
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
52
Strength to Weight: Axial, points 23
18 to 32
Strength to Weight: Bending, points 34
26 to 38
Thermal Diffusivity, mm2/s 56
55
Thermal Shock Resistance, points 9.8
7.8 to 14

Alloy Composition


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Aluminum (Al), % 0
85.4 to 90.5
Copper (Cu), % 0 to 0.030
0.8 to 1.3
Iron (Fe), % 0 to 0.010
0 to 0.8
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 91.8 to 95.1
0.25 to 0.65
Manganese (Mn), % 0 to 0.15
0.15 to 0.55
Nickel (Ni), % 0 to 0.0050
0 to 0.2
Silicon (Si), % 0 to 0.010
8.3 to 9.7
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.8
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.25