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2017 Aluminum vs. EN-MC65120 Magnesium

2017 aluminum belongs to the aluminum alloys classification, while EN-MC65120 magnesium belongs to the magnesium 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 2017 aluminum and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 12 to 18
3.1
Fatigue Strength, MPa 90 to 130
80
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 130 to 260
92
Tensile Strength: Ultimate (UTS), MPa 190 to 430
160
Tensile Strength: Yield (Proof), MPa 76 to 260
110

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
590
Melting Onset (Solidus), °C 510
520
Specific Heat Capacity, J/kg-K 880
970
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
25
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.0
25
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1140
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 66
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 470
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
62
Strength to Weight: Axial, points 17 to 40
23
Strength to Weight: Bending, points 24 to 42
34
Thermal Diffusivity, mm2/s 56
56
Thermal Shock Resistance, points 7.9 to 18
9.8

Alloy Composition

Aluminum (Al), % 91.6 to 95.5
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
0 to 0.030
Iron (Fe), % 0 to 0.7
0 to 0.010
Magnesium (Mg), % 0.4 to 0.8
91.8 to 95.1
Manganese (Mn), % 0.4 to 1.0
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.2 to 0.8
0 to 0.010
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.25
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010