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2011-T6 Aluminum vs. AZ80A-T6 Magnesium

2011-T6 aluminum belongs to the aluminum alloys classification, while AZ80A-T6 magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 2011-T6 aluminum and the bottom bar is AZ80A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 8.5
8.5
Fatigue Strength, MPa 100
140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 220
170
Tensile Strength: Ultimate (UTS), MPa 380
320
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 540
490
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 170
77
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
11
Electrical Conductivity: Equal Weight (Specific), % IACS 130
59

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 7.9
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
24
Resilience: Unit (Modulus of Resilience), kJ/m3 500
550
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
69
Strength to Weight: Axial, points 33
51
Strength to Weight: Bending, points 37
60
Thermal Diffusivity, mm2/s 64
45
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
7.8 to 9.2
Bismuth (Bi), % 0.2 to 0.6
0
Copper (Cu), % 5.0 to 6.0
0 to 0.050
Iron (Fe), % 0 to 0.7
0 to 0.0050
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
89 to 91.9
Manganese (Mn), % 0
0.12 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
0 to 0.1
Zinc (Zn), % 0 to 0.3
0.2 to 0.8
Residuals, % 0
0 to 0.3