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AZ91E Magnesium vs. 4006 Aluminum

AZ91E magnesium belongs to the magnesium alloys classification, while 4006 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 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
28 to 45
Elastic (Young's, Tensile) Modulus, GPa 46
69
Elongation at Break, % 2.5 to 6.2
3.4 to 24
Fatigue Strength, MPa 81 to 85
35 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 89 to 150
70 to 91
Tensile Strength: Ultimate (UTS), MPa 160 to 260
110 to 160
Tensile Strength: Yield (Proof), MPa 96 to 130
62 to 140

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 500
620
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 84
220
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10 to 12
56
Electrical Conductivity: Equal Weight (Specific), % IACS 52 to 60
180

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 22
8.1
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
5.1 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 190
28 to 130
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 25 to 42
11 to 16
Strength to Weight: Bending, points 37 to 53
19 to 24
Thermal Diffusivity, mm2/s 49
89
Thermal Shock Resistance, points 9.0 to 15
4.9 to 7.0

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
97.4 to 98.7
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0 to 0.015
0 to 0.1
Iron (Fe), % 0 to 0.0050
0.5 to 0.8
Magnesium (Mg), % 88.8 to 91.3
0 to 0.010
Manganese (Mn), % 0.17 to 0.35
0 to 0.050
Nickel (Ni), % 0 to 0.0010
0
Silicon (Si), % 0 to 0.2
0.8 to 1.2
Zinc (Zn), % 0.4 to 1.0
0 to 0.050
Residuals, % 0
0 to 0.15

Comparable Variants