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AZ91E Magnesium vs. 5754 Aluminum

AZ91E magnesium belongs to the magnesium alloys classification, while 5754 aluminum belongs to the aluminum alloys. There are 31 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 AZ91E magnesium and the bottom bar is 5754 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 46
68
Elongation at Break, % 2.5 to 6.2
2.0 to 19
Fatigue Strength, MPa 81 to 85
66 to 140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 89 to 150
120 to 190
Tensile Strength: Ultimate (UTS), MPa 160 to 260
200 to 330
Tensile Strength: Yield (Proof), MPa 96 to 130
80 to 280

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 600
650
Melting Onset (Solidus), °C 500
600
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 84
130
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10 to 12
33
Electrical Conductivity: Equal Weight (Specific), % IACS 52 to 60
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
8.7
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
6.1 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 190
47 to 580
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 25 to 42
21 to 34
Strength to Weight: Bending, points 37 to 53
28 to 39
Thermal Diffusivity, mm2/s 49
54
Thermal Shock Resistance, points 9.0 to 15
8.9 to 14

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
94.2 to 97.4
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.015
0 to 0.1
Iron (Fe), % 0 to 0.0050
0 to 0.4
Magnesium (Mg), % 88.8 to 91.3
2.6 to 3.6
Manganese (Mn), % 0.17 to 0.35
0 to 0.5
Nickel (Ni), % 0 to 0.0010
0
Silicon (Si), % 0 to 0.2
0 to 0.4
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0.4 to 1.0
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants