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2218 Aluminum vs. 6016 Aluminum

Both 2218 aluminum and 6016 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 2218 aluminum and the bottom bar is 6016 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
55 to 80
Elastic (Young's, Tensile) Modulus, GPa 73
69
Elongation at Break, % 6.8 to 10
11 to 27
Fatigue Strength, MPa 110
68 to 89
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 210 to 250
130 to 170
Tensile Strength: Ultimate (UTS), MPa 330 to 430
200 to 280
Tensile Strength: Yield (Proof), MPa 260 to 310
110 to 210

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 640
660
Melting Onset (Solidus), °C 510
610
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 140
190 to 210
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
48 to 54
Electrical Conductivity: Equal Weight (Specific), % IACS 110
160 to 180

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.1
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
29 to 47
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
82 to 340
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
51
Strength to Weight: Axial, points 30 to 39
21 to 29
Strength to Weight: Bending, points 34 to 41
29 to 35
Thermal Diffusivity, mm2/s 52
77 to 86
Thermal Shock Resistance, points 15 to 19
9.1 to 12

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
96.4 to 98.8
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 3.5 to 4.5
0 to 0.2
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 1.2 to 1.8
0.25 to 0.6
Manganese (Mn), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 1.7 to 2.3
0
Silicon (Si), % 0 to 0.9
1.0 to 1.5
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.25
0 to 0.2
Residuals, % 0
0 to 0.15