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206.0-T6 Aluminum vs. AZ91E-T6 Magnesium

206.0-T6 aluminum belongs to the aluminum alloys classification, while AZ91E-T6 magnesium belongs to the magnesium alloys. There are 31 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 206.0-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
75
Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 8.9
3.9
Fatigue Strength, MPa 94
84
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 260
150
Tensile Strength: Ultimate (UTS), MPa 380
260
Tensile Strength: Yield (Proof), MPa 240
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 570
500
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 120
84
Thermal Expansion, µm/m-K 19
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
11
Electrical Conductivity: Equal Weight (Specific), % IACS 99
58

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.0
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 420
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
69
Strength to Weight: Axial, points 35
42
Strength to Weight: Bending, points 39
53
Thermal Diffusivity, mm2/s 46
49
Thermal Shock Resistance, points 20
15

Alloy Composition

Aluminum (Al), % 93.3 to 95.3
8.1 to 9.3
Copper (Cu), % 4.2 to 5.0
0 to 0.015
Iron (Fe), % 0 to 0.15
0 to 0.0050
Magnesium (Mg), % 0.15 to 0.35
88.8 to 91.3
Manganese (Mn), % 0.2 to 0.5
0.17 to 0.35
Nickel (Ni), % 0 to 0.050
0 to 0.0010
Silicon (Si), % 0 to 0.1
0 to 0.2
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0.4 to 1.0
Residuals, % 0
0 to 0.3