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2018 Aluminum vs. 6065 Aluminum

Both 2018 aluminum and 6065 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. There are 30 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 2018 aluminum and the bottom bar is 6065 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
68
Elongation at Break, % 9.6
4.5 to 11
Fatigue Strength, MPa 120
96 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 270
190 to 230
Tensile Strength: Ultimate (UTS), MPa 420
310 to 400
Tensile Strength: Yield (Proof), MPa 310
270 to 380

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 220
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 510
590
Specific Heat Capacity, J/kg-K 870
890
Thermal Conductivity, W/m-K 150
170
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
43
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.1
2.8
Embodied Carbon, kg CO2/kg material 8.1
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
17 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 670
540 to 1040
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
49
Strength to Weight: Axial, points 38
31 to 40
Strength to Weight: Bending, points 41
36 to 43
Thermal Diffusivity, mm2/s 57
67
Thermal Shock Resistance, points 19
14 to 18

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
94.4 to 98.2
Bismuth (Bi), % 0
0.5 to 1.5
Chromium (Cr), % 0 to 0.1
0 to 0.15
Copper (Cu), % 3.5 to 4.5
0.15 to 0.4
Iron (Fe), % 0 to 1.0
0 to 0.7
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.45 to 0.9
0.8 to 1.2
Manganese (Mn), % 0 to 0.2
0 to 0.15
Nickel (Ni), % 1.7 to 2.3
0
Silicon (Si), % 0 to 0.9
0.4 to 0.8
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.25
Zirconium (Zr), % 0
0 to 0.15
Residuals, % 0
0 to 0.15