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AZ91E Magnesium vs. EN AC-46200 Aluminum

AZ91E magnesium belongs to the magnesium alloys classification, while EN AC-46200 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-46200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
82
Elastic (Young's, Tensile) Modulus, GPa 46
73
Elongation at Break, % 2.5 to 6.2
1.1
Fatigue Strength, MPa 81 to 85
87
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Tensile Strength: Ultimate (UTS), MPa 160 to 260
210
Tensile Strength: Yield (Proof), MPa 96 to 130
130

Thermal Properties

Latent Heat of Fusion, J/g 350
510
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
620
Melting Onset (Solidus), °C 500
540
Specific Heat Capacity, J/kg-K 990
880
Thermal Conductivity, W/m-K 84
110
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10 to 12
28
Electrical Conductivity: Equal Weight (Specific), % IACS 52 to 60
88

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
2.8
Embodied Carbon, kg CO2/kg material 22
7.7
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
1060

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4 to 12
2.0
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 190
110
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 25 to 42
21
Strength to Weight: Bending, points 37 to 53
28
Thermal Diffusivity, mm2/s 49
44
Thermal Shock Resistance, points 9.0 to 15
9.5

Alloy Composition

Aluminum (Al), % 8.1 to 9.3
82.6 to 90.3
Copper (Cu), % 0 to 0.015
2.0 to 3.5
Iron (Fe), % 0 to 0.0050
0 to 0.8
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 88.8 to 91.3
0.050 to 0.55
Manganese (Mn), % 0.17 to 0.35
0.15 to 0.65
Nickel (Ni), % 0 to 0.0010
0 to 0.35
Silicon (Si), % 0 to 0.2
7.5 to 9.5
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0.4 to 1.0
0 to 1.2
Residuals, % 0
0 to 0.25