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A390.0-F Aluminum vs. AZ31B-F Magnesium

A390.0-F aluminum belongs to the aluminum alloys classification, while AZ31B-F magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is A390.0-F aluminum and the bottom bar is AZ31B-F magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
45
Elongation at Break, % 0.91
8.9
Fatigue Strength, MPa 70
110
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Tensile Strength: Ultimate (UTS), MPa 220
250
Tensile Strength: Yield (Proof), MPa 210
150

Thermal Properties

Latent Heat of Fusion, J/g 640
350
Maximum Temperature: Mechanical, °C 170
150
Melting Completion (Liquidus), °C 580
600
Melting Onset (Solidus), °C 480
600
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 130
100
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
18
Electrical Conductivity: Equal Weight (Specific), % IACS 67
95

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 7.3
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 950
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0
19
Resilience: Unit (Modulus of Resilience), kJ/m3 280
250
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
70
Strength to Weight: Axial, points 23
41
Strength to Weight: Bending, points 30
52
Thermal Diffusivity, mm2/s 56
62
Thermal Shock Resistance, points 10
15

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
2.4 to 3.6
Calcium (Ca), % 0
0 to 0.040
Copper (Cu), % 4.0 to 5.0
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.050
Magnesium (Mg), % 0.45 to 0.65
93.6 to 97.1
Manganese (Mn), % 0 to 0.1
0.050 to 1.0
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 16 to 18
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0.5 to 1.5
Residuals, % 0
0 to 0.3