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296.0-T6 Aluminum vs. AZ91E-T6 Magnesium

296.0-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 (3, in this case) are not shown.

For each property being compared, the top bar is 296.0-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
75
Elastic (Young's, Tensile) Modulus, GPa 72
46
Elongation at Break, % 3.2
3.9
Fatigue Strength, MPa 70
84
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 220
150
Tensile Strength: Ultimate (UTS), MPa 270
260
Tensile Strength: Yield (Proof), MPa 180
130

Thermal Properties

Latent Heat of Fusion, J/g 420
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 540
500
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 130
84
Thermal Expansion, µm/m-K 22
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 7.8
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 220
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
69
Strength to Weight: Axial, points 25
42
Strength to Weight: Bending, points 31
53
Thermal Diffusivity, mm2/s 51
49
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 89 to 94
8.1 to 9.3
Copper (Cu), % 4.0 to 5.0
0 to 0.015
Iron (Fe), % 0 to 1.2
0 to 0.0050
Magnesium (Mg), % 0 to 0.050
88.8 to 91.3
Manganese (Mn), % 0 to 0.35
0.17 to 0.35
Nickel (Ni), % 0 to 0.35
0 to 0.0010
Silicon (Si), % 2.0 to 3.0
0 to 0.2
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.5
0.4 to 1.0
Residuals, % 0
0 to 0.3