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6066 Aluminum vs. ISO-WD21150 Magnesium

6066 aluminum belongs to the aluminum alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 6066 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 7.8 to 17
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 95 to 240
150 to 170
Tensile Strength: Ultimate (UTS), MPa 160 to 400
240 to 290
Tensile Strength: Yield (Proof), MPa 93 to 360
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 890
990
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
19
Electrical Conductivity: Equal Weight (Specific), % IACS 130
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 52
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 920
160 to 460
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
70
Strength to Weight: Axial, points 16 to 39
40 to 48
Strength to Weight: Bending, points 23 to 43
52 to 58
Thermal Diffusivity, mm2/s 61
60
Thermal Shock Resistance, points 6.9 to 17
15 to 17

Alloy Composition

Aluminum (Al), % 93 to 97
2.4 to 3.6
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0.7 to 1.2
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 0.8 to 1.4
94 to 97
Manganese (Mn), % 0.6 to 1.1
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.9 to 1.8
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0.5 to 1.5
Residuals, % 0
0 to 0.3

Comparable Variants