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518.0 Aluminum vs. EN-MC21110 Magnesium

518.0 aluminum belongs to the aluminum alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 518.0 aluminum and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
58 to 63
Elastic (Young's, Tensile) Modulus, GPa 67
46
Elongation at Break, % 5.0
2.8 to 6.7
Fatigue Strength, MPa 140
75 to 78
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
18
Shear Strength, MPa 200
120 to 160
Tensile Strength: Ultimate (UTS), MPa 310
200 to 270
Tensile Strength: Yield (Proof), MPa 190
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 620
600
Melting Onset (Solidus), °C 560
500
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 98
80
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
12
Electrical Conductivity: Equal Weight (Specific), % IACS 81
61

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 9.4
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 270
120 to 150
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
69
Strength to Weight: Axial, points 32
33 to 44
Strength to Weight: Bending, points 38
45 to 54
Thermal Diffusivity, mm2/s 40
47
Thermal Shock Resistance, points 14
12 to 16

Alloy Composition

Aluminum (Al), % 88.1 to 92.5
7.0 to 8.7
Copper (Cu), % 0 to 0.25
0 to 0.030
Iron (Fe), % 0 to 1.8
0 to 0.0050
Magnesium (Mg), % 7.5 to 8.5
89.6 to 92.6
Manganese (Mn), % 0 to 0.35
0.1 to 0.35
Nickel (Ni), % 0 to 0.15
0 to 0.0020
Silicon (Si), % 0 to 0.35
0 to 0.2
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0.35 to 1.0
Residuals, % 0
0 to 0.010