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EN-MC65120 Magnesium vs. 2017A Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 2017A 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 2017A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 3.1
2.2 to 14
Fatigue Strength, MPa 80
92 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 92
120 to 270
Tensile Strength: Ultimate (UTS), MPa 160
200 to 460
Tensile Strength: Yield (Proof), MPa 110
110 to 290

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 590
650
Melting Onset (Solidus), °C 520
510
Specific Heat Capacity, J/kg-K 970
880
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
34
Electrical Conductivity: Equal Weight (Specific), % IACS 120
100

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 1.9
3.0
Embodied Carbon, kg CO2/kg material 25
8.2
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
6.7 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 140
90 to 570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
46
Strength to Weight: Axial, points 23
19 to 42
Strength to Weight: Bending, points 34
26 to 44
Thermal Diffusivity, mm2/s 56
56
Thermal Shock Resistance, points 9.8
8.9 to 20

Alloy Composition


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Aluminum (Al), % 0
91.3 to 95.5
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.030
3.5 to 4.5
Iron (Fe), % 0 to 0.010
0 to 0.7
Magnesium (Mg), % 91.8 to 95.1
0.4 to 1.0
Manganese (Mn), % 0 to 0.15
0.4 to 1.0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0.2 to 0.8
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 0.25
Zirconium (Zr), % 0.4 to 1.0
0 to 0.25
Residuals, % 0 to 0.010
0 to 0.15