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5252 Aluminum vs. EQ21A Magnesium

5252 aluminum belongs to the aluminum alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 5252 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68 to 75
80
Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 4.5 to 11
2.4
Fatigue Strength, MPa 100 to 110
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
17
Shear Strength, MPa 140 to 160
150
Tensile Strength: Ultimate (UTS), MPa 230 to 290
250
Tensile Strength: Yield (Proof), MPa 170 to 240
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 610
560
Specific Heat Capacity, J/kg-K 910
980
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
80
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 8.7
27
Embodied Energy, MJ/kg 160
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
63
Strength to Weight: Axial, points 23 to 30
37
Strength to Weight: Bending, points 31 to 36
47
Thermal Diffusivity, mm2/s 57
62
Thermal Shock Resistance, points 10 to 13
15

Alloy Composition

Aluminum (Al), % 96.6 to 97.8
0
Copper (Cu), % 0 to 0.1
0.050 to 0.1
Iron (Fe), % 0 to 0.1
0
Magnesium (Mg), % 2.2 to 2.8
93.9 to 96.8
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.080
0
Silver (Ag), % 0
1.3 to 1.7
Unspecified Rare Earths, % 0
1.5 to 3.0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3