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EN-MC21310 Magnesium vs. 2017 Aluminum

EN-MC21310 magnesium belongs to the magnesium alloys classification, while 2017 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-MC21310 magnesium and the bottom bar is 2017 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
71
Elongation at Break, % 9.0
12 to 18
Fatigue Strength, MPa 86
90 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 120
130 to 260
Tensile Strength: Ultimate (UTS), MPa 200
190 to 430
Tensile Strength: Yield (Proof), MPa 120
76 to 260

Thermal Properties

Latent Heat of Fusion, J/g 360
390
Maximum Temperature: Mechanical, °C 100
190
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 560
510
Specific Heat Capacity, J/kg-K 1000
880
Thermal Conductivity, W/m-K 89
150
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
38
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.6
3.0
Embodied Carbon, kg CO2/kg material 23
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 970
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
24 to 66
Resilience: Unit (Modulus of Resilience), kJ/m3 160
41 to 470
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 73
46
Strength to Weight: Axial, points 34
17 to 40
Strength to Weight: Bending, points 47
24 to 42
Thermal Diffusivity, mm2/s 55
56
Thermal Shock Resistance, points 12
7.9 to 18

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
91.6 to 95.5
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.010
3.5 to 4.5
Iron (Fe), % 0 to 0.0050
0 to 0.7
Magnesium (Mg), % 95.2 to 97.4
0.4 to 0.8
Manganese (Mn), % 0.1 to 0.7
0.4 to 1.0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.7 to 1.2
0.2 to 0.8
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0 to 0.010
0 to 0.15