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6008 Aluminum vs. 2618A Aluminum

Both 6008 aluminum and 2618A aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 6008 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
72
Elongation at Break, % 9.1 to 17
4.5
Fatigue Strength, MPa 55 to 88
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 120 to 170
260
Tensile Strength: Ultimate (UTS), MPa 200 to 290
440
Tensile Strength: Yield (Proof), MPa 100 to 220
410

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 180
230
Melting Completion (Liquidus), °C 640
670
Melting Onset (Solidus), °C 620
560
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 190
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
37
Electrical Conductivity: Equal Weight (Specific), % IACS 160
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.5
8.4
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 28
19
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 360
1180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 21 to 29
41
Strength to Weight: Bending, points 28 to 35
44
Thermal Diffusivity, mm2/s 77
59
Thermal Shock Resistance, points 9.0 to 13
19

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
91.5 to 95.2
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
1.8 to 2.7
Iron (Fe), % 0 to 0.35
0.9 to 1.4
Magnesium (Mg), % 0.4 to 0.7
1.2 to 1.8
Manganese (Mn), % 0 to 0.3
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 0.5 to 0.9
0.15 to 0.25
Titanium (Ti), % 0 to 0.1
0 to 0.2
Vanadium (V), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.2
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15