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2011A Aluminum vs. AZ31C Magnesium

2011A aluminum belongs to the aluminum alloys classification, while AZ31C magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 2011A aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 6.8 to 16
12
Fatigue Strength, MPa 75 to 100
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 190 to 250
130
Tensile Strength: Ultimate (UTS), MPa 310 to 410
260
Tensile Strength: Yield (Proof), MPa 140 to 310
200

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 190
110
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
19
Electrical Conductivity: Equal Weight (Specific), % IACS 96
98

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
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
28
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
440
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
70
Strength to Weight: Axial, points 28 to 37
42
Strength to Weight: Bending, points 33 to 40
53
Thermal Diffusivity, mm2/s 49
74
Thermal Shock Resistance, points 14 to 18
16

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
2.4 to 3.6
Bismuth (Bi), % 0.2 to 0.6
0
Copper (Cu), % 4.5 to 6.0
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
93.4 to 97
Manganese (Mn), % 0
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
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