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6101 Aluminum vs. ISO-WD21150 Magnesium

6101 aluminum belongs to the aluminum alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is 6101 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 10 to 25
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 620
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 220 to 230
100
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 57 to 60
19
Electrical Conductivity: Equal Weight (Specific), % IACS 190 to 200
100

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
980

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
70
Thermal Diffusivity, mm2/s 89 to 93
60

Alloy Composition

Aluminum (Al), % 97.6 to 99.4
2.4 to 3.6
Boron (B), % 0 to 0.060
0
Chromium (Cr), % 0 to 0.030
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 0.35 to 0.8
94 to 97
Manganese (Mn), % 0 to 0.030
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0.3 to 0.7
0 to 0.1
Zinc (Zn), % 0 to 0.1
0.5 to 1.5
Residuals, % 0
0 to 0.3