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518.0 Aluminum vs. AZ31C Magnesium

518.0 aluminum belongs to the aluminum alloys classification, while AZ31C magnesium belongs to the magnesium alloys. There are 30 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 518.0 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
45
Elongation at Break, % 5.0
12
Fatigue Strength, MPa 140
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
17
Shear Strength, MPa 200
130
Tensile Strength: Ultimate (UTS), MPa 310
260
Tensile Strength: Yield (Proof), MPa 190
200

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 620
600
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 98
130
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
19
Electrical Conductivity: Equal Weight (Specific), % IACS 81
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 9.4
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
28
Resilience: Unit (Modulus of Resilience), kJ/m3 270
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
70
Strength to Weight: Axial, points 32
42
Strength to Weight: Bending, points 38
53
Thermal Diffusivity, mm2/s 40
74
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 88.1 to 92.5
2.4 to 3.6
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 1.8
0
Magnesium (Mg), % 7.5 to 8.5
93.4 to 97
Manganese (Mn), % 0 to 0.35
0.15 to 1.0
Nickel (Ni), % 0 to 0.15
0 to 0.030
Silicon (Si), % 0 to 0.35
0 to 0.1
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0.5 to 1.5
Residuals, % 0
0 to 0.3