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2011A Aluminum vs. 2618A Aluminum

Both 2011A aluminum and 2618A aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is 2011A aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
72
Elongation at Break, % 6.8 to 16
4.5
Fatigue Strength, MPa 75 to 100
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 190 to 250
260
Tensile Strength: Ultimate (UTS), MPa 310 to 410
440
Tensile Strength: Yield (Proof), MPa 140 to 310
410

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 190
230
Melting Completion (Liquidus), °C 660
670
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
37
Electrical Conductivity: Equal Weight (Specific), % IACS 96
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.1
3.0
Embodied Carbon, kg CO2/kg material 7.9
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
19
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
1180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
47
Strength to Weight: Axial, points 28 to 37
41
Strength to Weight: Bending, points 33 to 40
44
Thermal Diffusivity, mm2/s 49
59
Thermal Shock Resistance, points 14 to 18
19

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
91.5 to 95.2
Bismuth (Bi), % 0.2 to 0.6
0
Copper (Cu), % 4.5 to 6.0
1.8 to 2.7
Iron (Fe), % 0 to 0.5
0.9 to 1.4
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 0 to 0.4
0.15 to 0.25
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.3
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15