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712.0-T5 Aluminum vs. AZ80A-T5 Magnesium

712.0-T5 aluminum belongs to the aluminum alloys classification, while AZ80A-T5 magnesium belongs to the magnesium alloys. There are 30 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 712.0-T5 aluminum and the bottom bar is AZ80A-T5 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 4.5
3.9
Fatigue Strength, MPa 180
170
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 180
160
Tensile Strength: Ultimate (UTS), MPa 260
340
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 610
490
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 160
77
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 120
59

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
12
Resilience: Unit (Modulus of Resilience), kJ/m3 270
600
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
69
Strength to Weight: Axial, points 25
55
Strength to Weight: Bending, points 31
63
Thermal Diffusivity, mm2/s 62
45
Thermal Shock Resistance, points 11
20

Alloy Composition

Aluminum (Al), % 90.7 to 94
7.8 to 9.2
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 0.5 to 0.65
89 to 91.9
Manganese (Mn), % 0 to 0.1
0.12 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.3
0 to 0.1
Titanium (Ti), % 0.15 to 0.25
0
Zinc (Zn), % 5.0 to 6.5
0.2 to 0.8
Residuals, % 0
0 to 0.3