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AZ91E Magnesium vs. EN AC-48000 Aluminum

AZ91E magnesium belongs to the magnesium alloys classification, while EN AC-48000 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 EN AC-48000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 46
73
Elongation at Break, % 2.5 to 6.2
1.0
Fatigue Strength, MPa 81 to 85
85 to 86
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
28
Tensile Strength: Ultimate (UTS), MPa 160 to 260
220 to 310
Tensile Strength: Yield (Proof), MPa 96 to 130
210 to 270

Thermal Properties

Latent Heat of Fusion, J/g 350
570
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 500
560
Specific Heat Capacity, J/kg-K 990
890
Thermal Conductivity, W/m-K 84
130
Thermal Expansion, µm/m-K 27
21

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
10
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
7.9
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4 to 12
2.2 to 3.0
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 190
300 to 510
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 69
53
Strength to Weight: Axial, points 25 to 42
23 to 33
Strength to Weight: Bending, points 37 to 53
31 to 39
Thermal Diffusivity, mm2/s 49
54
Thermal Shock Resistance, points 9.0 to 15
10 to 15

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
80.4 to 87.2
Copper (Cu), % 0 to 0.015
0.8 to 1.5
Iron (Fe), % 0 to 0.0050
0 to 0.7
Magnesium (Mg), % 88.8 to 91.3
0.8 to 1.5
Manganese (Mn), % 0.17 to 0.35
0 to 0.35
Nickel (Ni), % 0 to 0.0010
0.7 to 1.3
Silicon (Si), % 0 to 0.2
10.5 to 13.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0.4 to 1.0
0 to 0.35
Residuals, % 0
0 to 0.15

Comparable Variants