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A390.0-T5 Aluminum vs. AZ80A-T5 Magnesium

A390.0-T5 aluminum belongs to the aluminum alloys classification, while AZ80A-T5 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 A390.0-T5 aluminum and the bottom bar is AZ80A-T5 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
46
Elongation at Break, % 0.87
3.9
Fatigue Strength, MPa 77
170
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Tensile Strength: Ultimate (UTS), MPa 190
340
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 640
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 580
600
Melting Onset (Solidus), °C 480
490
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 130
77
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
11
Electrical Conductivity: Equal Weight (Specific), % IACS 67
59

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 7.3
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 950
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6
12
Resilience: Unit (Modulus of Resilience), kJ/m3 240
600
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
69
Strength to Weight: Axial, points 19
55
Strength to Weight: Bending, points 27
63
Thermal Diffusivity, mm2/s 56
45
Thermal Shock Resistance, points 9.0
20

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
7.8 to 9.2
Copper (Cu), % 4.0 to 5.0
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 0.45 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), % 16 to 18
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0.2 to 0.8
Residuals, % 0
0 to 0.3