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6106 Aluminum vs. EQ21A Magnesium

6106 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 6106 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, % 9.1
2.4
Fatigue Strength, MPa 88
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 170
150
Tensile Strength: Ultimate (UTS), MPa 290
250
Tensile Strength: Yield (Proof), MPa 220
190

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 610
560
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 190
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
25
Electrical Conductivity: Equal Weight (Specific), % IACS 160
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 24
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 370
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 29
37
Strength to Weight: Bending, points 35
47
Thermal Diffusivity, mm2/s 78
62
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 97.2 to 99.3
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.25
0.050 to 0.1
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 0.4 to 0.8
93.9 to 96.8
Manganese (Mn), % 0.050 to 0.2
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.3 to 0.6
0
Silver (Ag), % 0
1.3 to 1.7
Titanium (Ti), % 0 to 0.1
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3