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AZ91E Magnesium vs. 2014A Aluminum

AZ91E magnesium belongs to the magnesium alloys classification, while 2014A 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 2014A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
72
Elongation at Break, % 2.5 to 6.2
6.2 to 16
Fatigue Strength, MPa 81 to 85
93 to 150
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Shear Strength, MPa 89 to 150
130 to 290
Tensile Strength: Ultimate (UTS), MPa 160 to 260
210 to 490
Tensile Strength: Yield (Proof), MPa 96 to 130
110 to 430

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 500
510
Specific Heat Capacity, J/kg-K 990
870
Thermal Conductivity, W/m-K 84
150
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10 to 12
37
Electrical Conductivity: Equal Weight (Specific), % IACS 52 to 60
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 1.7
3.0
Embodied Carbon, kg CO2/kg material 22
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4 to 12
24 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 190
85 to 1300
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
46
Strength to Weight: Axial, points 25 to 42
19 to 45
Strength to Weight: Bending, points 37 to 53
26 to 46
Thermal Diffusivity, mm2/s 49
55
Thermal Shock Resistance, points 9.0 to 15
9.0 to 22

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
90.8 to 95
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.015
3.9 to 5.0
Iron (Fe), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 88.8 to 91.3
0.2 to 0.8
Manganese (Mn), % 0.17 to 0.35
0.4 to 1.2
Nickel (Ni), % 0 to 0.0010
0 to 0.1
Silicon (Si), % 0 to 0.2
0.5 to 0.9
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0.4 to 1.0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants