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1200-F Aluminum vs. AZ91D-F Magnesium

1200-F aluminum belongs to the aluminum alloys classification, while AZ91D-F magnesium belongs to the magnesium alloys. There are 30 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-F aluminum and the bottom bar is AZ91D-F magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 23
3.3
Fatigue Strength, MPa 25
81
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 54
140
Tensile Strength: Ultimate (UTS), MPa 85
160
Tensile Strength: Yield (Proof), MPa 28
110

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
490
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 230
78
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
11
Electrical Conductivity: Equal Weight (Specific), % IACS 190
58

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 15
4.7
Resilience: Unit (Modulus of Resilience), kJ/m3 5.7
130
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 8.7
26
Strength to Weight: Bending, points 16
38
Thermal Diffusivity, mm2/s 92
45
Thermal Shock Resistance, points 3.8
9.5

Alloy Composition

Aluminum (Al), % 99 to 100
8.3 to 9.7
Copper (Cu), % 0 to 0.050
0 to 0.030
Iron (Fe), % 0 to 1.0
0 to 0.0050
Magnesium (Mg), % 0
88.7 to 91.2
Manganese (Mn), % 0 to 0.050
0.15 to 0.5
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0 to 1.0
0 to 0.1
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0.35 to 1.0
Residuals, % 0 to 0.15
0