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2011 Aluminum vs. 5021 Aluminum

Both 2011 aluminum and 5021 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 2011 aluminum and the bottom bar is 5021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
68
Elongation at Break, % 8.5 to 18
1.1 to 3.4
Fatigue Strength, MPa 74 to 120
85 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 190 to 250
170
Tensile Strength: Ultimate (UTS), MPa 310 to 420
300 to 310
Tensile Strength: Yield (Proof), MPa 140 to 310
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 540
590
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 140 to 170
140
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 45
35
Electrical Conductivity: Equal Weight (Specific), % IACS 100 to 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.1
2.7
Embodied Carbon, kg CO2/kg material 7.9
8.6
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 52
3.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
440 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
50
Strength to Weight: Axial, points 27 to 37
30 to 32
Strength to Weight: Bending, points 32 to 40
37
Thermal Diffusivity, mm2/s 51 to 64
57
Thermal Shock Resistance, points 14 to 19
13 to 14

Alloy Composition

Aluminum (Al), % 91.3 to 94.6
95.2 to 97.7
Bismuth (Bi), % 0.2 to 0.6
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 5.0 to 6.0
0 to 0.15
Iron (Fe), % 0 to 0.7
0 to 0.5
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0
0.1 to 0.5
Silicon (Si), % 0 to 0.4
0 to 0.4
Zinc (Zn), % 0 to 0.3
0 to 0.15
Residuals, % 0
0 to 0.15