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A356.0-T6 Aluminum vs. AZ80A-T6 Magnesium

A356.0-T6 aluminum belongs to the aluminum alloys classification, while AZ80A-T6 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is A356.0-T6 aluminum and the bottom bar is AZ80A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 6.0
8.5
Fatigue Strength, MPa 90
140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 270
320
Tensile Strength: Yield (Proof), MPa 200
230

Thermal Properties

Latent Heat of Fusion, J/g 500
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 610
600
Melting Onset (Solidus), °C 570
490
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 150
77
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
59

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
1.7
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
24
Resilience: Unit (Modulus of Resilience), kJ/m3 280
550
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 53
69
Strength to Weight: Axial, points 29
51
Strength to Weight: Bending, points 36
60
Thermal Diffusivity, mm2/s 64
45
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 91.1 to 93.3
7.8 to 9.2
Copper (Cu), % 0 to 0.2
0 to 0.050
Iron (Fe), % 0 to 0.2
0 to 0.0050
Magnesium (Mg), % 0.25 to 0.45
89 to 91.9
Manganese (Mn), % 0 to 0.1
0.12 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 6.5 to 7.5
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