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2011 Aluminum vs. ISO-WD21150 Magnesium

2011 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 2011 aluminum and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 8.5 to 18
5.7 to 11
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 190 to 250
150 to 170
Tensile Strength: Ultimate (UTS), MPa 310 to 420
240 to 290
Tensile Strength: Yield (Proof), MPa 140 to 310
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 190
110
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 540
550
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 140 to 170
100
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 45
19
Electrical Conductivity: Equal Weight (Specific), % IACS 100 to 130
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 7.9
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 52
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
160 to 460
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
70
Strength to Weight: Axial, points 27 to 37
40 to 48
Strength to Weight: Bending, points 32 to 40
52 to 58
Thermal Diffusivity, mm2/s 51 to 64
60
Thermal Shock Resistance, points 14 to 19
15 to 17

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
2.4 to 3.6
Bismuth (Bi), % 0.2 to 0.6
0
Copper (Cu), % 5.0 to 6.0
0 to 0.050
Iron (Fe), % 0 to 0.7
0 to 0.0050
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
0 to 0.1
Zinc (Zn), % 0 to 0.3
0.5 to 1.5
Residuals, % 0
0 to 0.3