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512.0 Aluminum vs. AZ31C Magnesium

512.0 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 (2, in this case) are not shown.

For each property being compared, the top bar is 512.0 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 2.0
12
Fatigue Strength, MPa 58
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Tensile Strength: Ultimate (UTS), MPa 130
260
Tensile Strength: Yield (Proof), MPa 83
200

Thermal Properties

Latent Heat of Fusion, J/g 420
350
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 630
600
Melting Onset (Solidus), °C 590
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
19
Electrical Conductivity: Equal Weight (Specific), % IACS 130
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.8
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
28
Resilience: Unit (Modulus of Resilience), kJ/m3 50
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
70
Strength to Weight: Axial, points 14
42
Strength to Weight: Bending, points 22
53
Thermal Diffusivity, mm2/s 60
74
Thermal Shock Resistance, points 6.1
16

Alloy Composition

Aluminum (Al), % 90.6 to 95.1
2.4 to 3.6
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.35
0 to 0.1
Iron (Fe), % 0 to 0.6
0
Magnesium (Mg), % 3.5 to 4.5
93.4 to 97
Manganese (Mn), % 0 to 0.8
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 1.4 to 2.2
0 to 0.1
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0.5 to 1.5
Residuals, % 0
0 to 0.3