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6023 Aluminum vs. EQ21A Magnesium

6023 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 6023 aluminum and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
44
Elongation at Break, % 11
2.4
Fatigue Strength, MPa 120 to 130
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 210 to 220
150
Tensile Strength: Ultimate (UTS), MPa 360
250
Tensile Strength: Yield (Proof), MPa 300 to 310
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 580
560
Specific Heat Capacity, J/kg-K 890
980
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
80
Density, g/cm3 2.8
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 38 to 39
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
63
Strength to Weight: Axial, points 35 to 36
37
Strength to Weight: Bending, points 40
47
Thermal Diffusivity, mm2/s 67
62
Thermal Shock Resistance, points 16
15

Alloy Composition

Aluminum (Al), % 94 to 97.7
0
Bismuth (Bi), % 0.3 to 0.8
0
Copper (Cu), % 0.2 to 0.5
0.050 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 0.4 to 0.9
93.9 to 96.8
Manganese (Mn), % 0.2 to 0.6
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.6 to 1.4
0
Silver (Ag), % 0
1.3 to 1.7
Tin (Sn), % 0.6 to 1.2
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0 to 0.15
0 to 0.3