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2011A Aluminum vs. 3102 Aluminum

Both 2011A aluminum and 3102 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 2011A aluminum and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 6.8 to 16
23 to 28
Fatigue Strength, MPa 75 to 100
31 to 34
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190 to 250
58 to 65
Tensile Strength: Ultimate (UTS), MPa 310 to 410
92 to 100
Tensile Strength: Yield (Proof), MPa 140 to 310
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 550
640
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 130
230
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
56
Electrical Conductivity: Equal Weight (Specific), % IACS 96
190

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.0
Density, g/cm3 3.1
2.7
Embodied Carbon, kg CO2/kg material 7.9
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
5.8 to 8.3
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
50
Strength to Weight: Axial, points 28 to 37
9.4 to 10
Strength to Weight: Bending, points 33 to 40
17 to 18
Thermal Diffusivity, mm2/s 49
92
Thermal Shock Resistance, points 14 to 18
4.1 to 4.4

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
97.9 to 99.95
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 to 0.7
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0.050 to 0.4
Silicon (Si), % 0 to 0.4
0 to 0.4
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.3
0 to 0.3
Residuals, % 0
0 to 0.15