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5110A Aluminum vs. EQ21A Magnesium

5110A aluminum belongs to the aluminum alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 5110A aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 4.5 to 28
2.4
Fatigue Strength, MPa 37 to 77
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 66 to 110
150
Tensile Strength: Ultimate (UTS), MPa 100 to 190
250
Tensile Strength: Yield (Proof), MPa 32 to 170
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 640
560
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 220
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 57
25
Electrical Conductivity: Equal Weight (Specific), % IACS 190
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
80
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 8.3
27
Embodied Energy, MJ/kg 150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 22
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 7.6 to 200
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 10 to 19
37
Strength to Weight: Bending, points 18 to 27
47
Thermal Diffusivity, mm2/s 91
62
Thermal Shock Resistance, points 4.5 to 8.4
15

Alloy Composition

Aluminum (Al), % 98.5 to 99.8
0
Copper (Cu), % 0 to 0.2
0.050 to 0.1
Iron (Fe), % 0 to 0.25
0
Magnesium (Mg), % 0.2 to 0.6
93.9 to 96.8
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.15
0
Silver (Ag), % 0
1.3 to 1.7
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 0.030
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3