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2011A Aluminum vs. 8021 Aluminum

Both 2011A aluminum and 8021 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. 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 2011A aluminum and the bottom bar is 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 6.8 to 16
2.3
Fatigue Strength, MPa 75 to 100
61
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 310 to 410
160
Tensile Strength: Yield (Proof), MPa 140 to 310
130

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 660
650
Melting Onset (Solidus), °C 550
640
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 130
220
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
56
Electrical Conductivity: Equal Weight (Specific), % IACS 96
180

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.0
Density, g/cm3 3.1
2.8
Embodied Carbon, kg CO2/kg material 7.9
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
49
Strength to Weight: Axial, points 28 to 37
16
Strength to Weight: Bending, points 33 to 40
23
Thermal Diffusivity, mm2/s 49
88
Thermal Shock Resistance, points 14 to 18
7.0

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
98 to 98.8
Bismuth (Bi), % 0.2 to 0.6
0
Copper (Cu), % 4.5 to 6.0
0 to 0.050
Iron (Fe), % 0 to 0.5
1.2 to 1.7
Lead (Pb), % 0.2 to 0.6
0
Silicon (Si), % 0 to 0.4
0 to 0.15
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.15