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AZ80A Magnesium vs. 5110A Aluminum

AZ80A magnesium belongs to the magnesium alloys classification, while 5110A aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is AZ80A magnesium and the bottom bar is 5110A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
68
Elongation at Break, % 3.9 to 8.5
4.5 to 28
Fatigue Strength, MPa 140 to 170
37 to 77
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 160 to 190
66 to 110
Tensile Strength: Ultimate (UTS), MPa 320 to 340
100 to 190
Tensile Strength: Yield (Proof), MPa 210 to 230
32 to 170

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 490
640
Specific Heat Capacity, J/kg-K 990
900
Thermal Conductivity, W/m-K 77
220
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
57
Electrical Conductivity: Equal Weight (Specific), % IACS 59
190

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.7
Embodied Carbon, kg CO2/kg material 23
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 24
6.8 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 600
7.6 to 200
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
50
Strength to Weight: Axial, points 51 to 55
10 to 19
Strength to Weight: Bending, points 60 to 63
18 to 27
Thermal Diffusivity, mm2/s 45
91
Thermal Shock Resistance, points 19 to 20
4.5 to 8.4

Alloy Composition

Aluminum (Al), % 7.8 to 9.2
98.5 to 99.8
Copper (Cu), % 0 to 0.050
0 to 0.2
Iron (Fe), % 0 to 0.0050
0 to 0.25
Magnesium (Mg), % 89 to 91.9
0.2 to 0.6
Manganese (Mn), % 0.12 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 0.2 to 0.8
0 to 0.030
Residuals, % 0
0 to 0.1