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2011-T6 Aluminum vs. AZ91E-T6 Magnesium

2011-T6 aluminum belongs to the aluminum alloys classification, while AZ91E-T6 magnesium belongs to the magnesium 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 2011-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 8.5
3.9
Fatigue Strength, MPa 100
84
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 220
150
Tensile Strength: Ultimate (UTS), MPa 380
260
Tensile Strength: Yield (Proof), MPa 270
130

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
500
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 170
84
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
11
Electrical Conductivity: Equal Weight (Specific), % IACS 130
58

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 7.9
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 500
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
69
Strength to Weight: Axial, points 33
42
Strength to Weight: Bending, points 37
53
Thermal Diffusivity, mm2/s 64
49
Thermal Shock Resistance, points 17
15

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
8.1 to 9.3
Bismuth (Bi), % 0.2 to 0.6
0
Copper (Cu), % 5.0 to 6.0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.0050
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
88.8 to 91.3
Manganese (Mn), % 0
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 0 to 0.4
0 to 0.2
Zinc (Zn), % 0 to 0.3
0.4 to 1.0
Residuals, % 0
0 to 0.3