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6061-T6 Aluminum vs. AZ80A-T6 Magnesium

6061-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 6061-T6 aluminum and the bottom bar is AZ80A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 10
8.5
Fatigue Strength, MPa 96
140
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 210
170
Tensile Strength: Ultimate (UTS), MPa 310
320
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 580
490
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 170
77
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
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 1180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
24
Resilience: Unit (Modulus of Resilience), kJ/m3 520
550
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 31
51
Strength to Weight: Bending, points 37
60
Thermal Diffusivity, mm2/s 68
45
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 95.9 to 98.6
7.8 to 9.2
Chromium (Cr), % 0.040 to 0.35
0
Copper (Cu), % 0.15 to 0.4
0 to 0.050
Iron (Fe), % 0 to 0.7
0 to 0.0050
Magnesium (Mg), % 0.8 to 1.2
89 to 91.9
Manganese (Mn), % 0 to 0.15
0.12 to 0.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.4 to 0.8
0 to 0.1
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0.2 to 0.8
Residuals, % 0
0 to 0.3