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1200 Aluminum vs. AZ91E Magnesium

1200 aluminum belongs to the aluminum alloys classification, while AZ91E magnesium belongs to the magnesium 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 1200 aluminum and the bottom bar is AZ91E magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23 to 48
75
Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 1.1 to 28
2.5 to 6.2
Fatigue Strength, MPa 25 to 69
81 to 85
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 54 to 100
89 to 150
Tensile Strength: Ultimate (UTS), MPa 85 to 180
160 to 260
Tensile Strength: Yield (Proof), MPa 28 to 160
96 to 130

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 650
500
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 230
84
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
10 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 190
52 to 60

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.2
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0 to 19
3.4 to 12
Resilience: Unit (Modulus of Resilience), kJ/m3 5.7 to 180
100 to 190
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 8.7 to 19
25 to 42
Strength to Weight: Bending, points 16 to 26
37 to 53
Thermal Diffusivity, mm2/s 92
49
Thermal Shock Resistance, points 3.8 to 8.1
9.0 to 15

Alloy Composition

Aluminum (Al), % 99 to 100
8.1 to 9.3
Copper (Cu), % 0 to 0.050
0 to 0.015
Iron (Fe), % 0 to 1.0
0 to 0.0050
Magnesium (Mg), % 0
88.8 to 91.3
Manganese (Mn), % 0 to 0.050
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 0 to 1.0
0 to 0.2
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0.4 to 1.0
Residuals, % 0
0 to 0.3

Comparable Variants