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EN-MC65120 Magnesium vs. EN AC-42200 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while EN AC-42200 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-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 3.1
3.0 to 6.7
Fatigue Strength, MPa 80
86 to 90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Tensile Strength: Ultimate (UTS), MPa 160
320
Tensile Strength: Yield (Proof), MPa 110
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 330
500
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
610
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 970
910
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
40
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.6
Embodied Carbon, kg CO2/kg material 25
8.0
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
9.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 140
410 to 490
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
53
Strength to Weight: Axial, points 23
34 to 35
Strength to Weight: Bending, points 34
40 to 41
Thermal Diffusivity, mm2/s 56
66
Thermal Shock Resistance, points 9.8
15

Alloy Composition


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Aluminum (Al), % 0
91 to 93.1
Copper (Cu), % 0 to 0.030
0 to 0.050
Iron (Fe), % 0 to 0.010
0 to 0.19
Magnesium (Mg), % 91.8 to 95.1
0.45 to 0.7
Manganese (Mn), % 0 to 0.15
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.25
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.070
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.1