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6063-T6 Aluminum vs. AZ80A-T6 Magnesium

6063-T6 aluminum belongs to the aluminum alloys classification, while AZ80A-T6 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 6063-T6 aluminum and the bottom bar is AZ80A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
46
Elongation at Break, % 11
8.5
Fatigue Strength, MPa 70
140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 150
170
Tensile Strength: Ultimate (UTS), MPa 240
320
Tensile Strength: Yield (Proof), MPa 210
230

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 620
490
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 200
77
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 53
11
Electrical Conductivity: Equal Weight (Specific), % IACS 180
59

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
24
Resilience: Unit (Modulus of Resilience), kJ/m3 320
550
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 25
51
Strength to Weight: Bending, points 32
60
Thermal Diffusivity, mm2/s 82
45
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 97.5 to 99.4
7.8 to 9.2
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.35
0 to 0.0050
Magnesium (Mg), % 0.45 to 0.9
89 to 91.9
Manganese (Mn), % 0 to 0.1
0.12 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.2 to 0.6
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0.2 to 0.8
Residuals, % 0
0 to 0.3