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6008-T6 Aluminum vs. AZ91E-T6 Magnesium

6008-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 6008-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 9.1
3.9
Fatigue Strength, MPa 88
84
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 170
150
Tensile Strength: Ultimate (UTS), MPa 290
260
Tensile Strength: Yield (Proof), MPa 220
130

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 620
500
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 190
84
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
11
Electrical Conductivity: Equal Weight (Specific), % IACS 160
58

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.5
22
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 360
190
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 29
42
Strength to Weight: Bending, points 35
53
Thermal Diffusivity, mm2/s 77
49
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
8.1 to 9.3
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0 to 0.015
Iron (Fe), % 0 to 0.35
0 to 0.0050
Magnesium (Mg), % 0.4 to 0.7
88.8 to 91.3
Manganese (Mn), % 0 to 0.3
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 0.5 to 0.9
0 to 0.2
Titanium (Ti), % 0 to 0.1
0
Vanadium (V), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.2
0.4 to 1.0
Residuals, % 0
0 to 0.3