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AZ91E Magnesium vs. 6023 Aluminum

AZ91E magnesium belongs to the magnesium alloys classification, while 6023 aluminum belongs to the aluminum alloys. There are 30 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 AZ91E magnesium and the bottom bar is 6023 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
69
Elongation at Break, % 2.5 to 6.2
11
Fatigue Strength, MPa 81 to 85
120 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 89 to 150
210 to 220
Tensile Strength: Ultimate (UTS), MPa 160 to 260
360
Tensile Strength: Yield (Proof), MPa 96 to 130
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 500
580
Specific Heat Capacity, J/kg-K 990
890
Thermal Conductivity, W/m-K 84
170
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10 to 12
45
Electrical Conductivity: Equal Weight (Specific), % IACS 52 to 60
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
2.8
Embodied Carbon, kg CO2/kg material 22
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4 to 12
38 to 39
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 190
670 to 690
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
49
Strength to Weight: Axial, points 25 to 42
35 to 36
Strength to Weight: Bending, points 37 to 53
40
Thermal Diffusivity, mm2/s 49
67
Thermal Shock Resistance, points 9.0 to 15
16

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
94 to 97.7
Bismuth (Bi), % 0
0.3 to 0.8
Copper (Cu), % 0 to 0.015
0.2 to 0.5
Iron (Fe), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 88.8 to 91.3
0.4 to 0.9
Manganese (Mn), % 0.17 to 0.35
0.2 to 0.6
Nickel (Ni), % 0 to 0.0010
0
Silicon (Si), % 0 to 0.2
0.6 to 1.4
Tin (Sn), % 0
0.6 to 1.2
Zinc (Zn), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15

Comparable Variants