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EQ21A Magnesium vs. 5005A Aluminum

EQ21A magnesium belongs to the magnesium alloys classification, while 5005A aluminum belongs to the aluminum 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 EQ21A magnesium and the bottom bar is 5005A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
29 to 64
Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.4
1.1 to 21
Fatigue Strength, MPa 110
38 to 82
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 150
71 to 130
Tensile Strength: Ultimate (UTS), MPa 250
110 to 230
Tensile Strength: Yield (Proof), MPa 190
43 to 210

Thermal Properties

Latent Heat of Fusion, J/g 340
400
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 640
660
Melting Onset (Solidus), °C 560
630
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
200
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
52
Electrical Conductivity: Equal Weight (Specific), % IACS 120
170

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
2.0 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 410
14 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
50
Strength to Weight: Axial, points 37
12 to 24
Strength to Weight: Bending, points 47
19 to 31
Thermal Diffusivity, mm2/s 62
82
Thermal Shock Resistance, points 15
5.0 to 10

Alloy Composition


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Aluminum (Al), % 0
97.5 to 99.3
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.050 to 0.1
0 to 0.050
Iron (Fe), % 0
0 to 0.45
Magnesium (Mg), % 93.9 to 96.8
0.7 to 1.1
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.3
Silver (Ag), % 1.3 to 1.7
0
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.15