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6066-T6 Aluminum vs. AZ80A-T6 Magnesium

6066-T6 aluminum belongs to the aluminum alloys classification, while AZ80A-T6 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 6066-T6 aluminum and the bottom bar is AZ80A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 9.5
8.5
Fatigue Strength, MPa 110
140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 240
170
Tensile Strength: Ultimate (UTS), MPa 390
320
Tensile Strength: Yield (Proof), MPa 350
230

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 560
490
Specific Heat Capacity, J/kg-K 890
990
Thermal Conductivity, W/m-K 150
77
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 130
59

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
24
Resilience: Unit (Modulus of Resilience), kJ/m3 890
550
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
69
Strength to Weight: Axial, points 39
51
Strength to Weight: Bending, points 43
60
Thermal Diffusivity, mm2/s 61
45
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 93 to 97
7.8 to 9.2
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0.7 to 1.2
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 0.8 to 1.4
89 to 91.9
Manganese (Mn), % 0.6 to 1.1
0.12 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.9 to 1.8
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0.2 to 0.8
Residuals, % 0
0 to 0.3