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392.0 Aluminum vs. AZ31C Magnesium

392.0 aluminum belongs to the aluminum alloys classification, while AZ31C magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 392.0 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
45
Elongation at Break, % 0.86
12
Fatigue Strength, MPa 190
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Tensile Strength: Ultimate (UTS), MPa 290
260
Tensile Strength: Yield (Proof), MPa 270
200

Thermal Properties

Latent Heat of Fusion, J/g 670
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 670
600
Melting Onset (Solidus), °C 580
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 19
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
19
Electrical Conductivity: Equal Weight (Specific), % IACS 90
98

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.5
1.7
Embodied Carbon, kg CO2/kg material 7.5
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 950
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
28
Resilience: Unit (Modulus of Resilience), kJ/m3 490
440
Stiffness to Weight: Axial, points 17
15
Stiffness to Weight: Bending, points 56
70
Strength to Weight: Axial, points 32
42
Strength to Weight: Bending, points 39
53
Thermal Diffusivity, mm2/s 60
74
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
2.4 to 3.6
Copper (Cu), % 0.4 to 0.8
0 to 0.1
Iron (Fe), % 0 to 1.5
0
Magnesium (Mg), % 0.8 to 1.2
93.4 to 97
Manganese (Mn), % 0.2 to 0.6
0.15 to 1.0
Nickel (Ni), % 0 to 0.5
0 to 0.030
Silicon (Si), % 18 to 20
0 to 0.1
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0.5 to 1.5
Residuals, % 0
0 to 0.3