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206.0 Aluminum vs. 2618A Aluminum

Both 206.0 aluminum and 2618A aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 206.0 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
72
Elongation at Break, % 8.4 to 12
4.5
Fatigue Strength, MPa 88 to 210
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 260
260
Tensile Strength: Ultimate (UTS), MPa 330 to 440
440
Tensile Strength: Yield (Proof), MPa 190 to 350
410

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 650
670
Melting Onset (Solidus), °C 570
560
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 120
150
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
37
Electrical Conductivity: Equal Weight (Specific), % IACS 99
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.0
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
19
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 840
1180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
47
Strength to Weight: Axial, points 30 to 40
41
Strength to Weight: Bending, points 35 to 42
44
Thermal Diffusivity, mm2/s 46
59
Thermal Shock Resistance, points 17 to 23
19

Alloy Composition

Aluminum (Al), % 93.3 to 95.3
91.5 to 95.2
Copper (Cu), % 4.2 to 5.0
1.8 to 2.7
Iron (Fe), % 0 to 0.15
0.9 to 1.4
Magnesium (Mg), % 0.15 to 0.35
1.2 to 1.8
Manganese (Mn), % 0.2 to 0.5
0 to 0.25
Nickel (Ni), % 0 to 0.050
0.8 to 1.4
Silicon (Si), % 0 to 0.1
0.15 to 0.25
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0 to 0.2
Zinc (Zn), % 0 to 0.1
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15