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6082 Aluminum vs. 2618 Aluminum

Both 6082 aluminum and 2618 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 6082 aluminum and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 40 to 95
120
Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 6.3 to 18
5.8
Fatigue Strength, MPa 55 to 130
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 84 to 220
260
Tensile Strength: Ultimate (UTS), MPa 140 to 340
420
Tensile Strength: Yield (Proof), MPa 85 to 320
350

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 580
550
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 160
160
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
37
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 43
23
Resilience: Unit (Modulus of Resilience), kJ/m3 52 to 710
850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 14 to 35
40
Strength to Weight: Bending, points 21 to 40
42
Thermal Diffusivity, mm2/s 67
62
Thermal Shock Resistance, points 6.0 to 15
19

Alloy Composition

Aluminum (Al), % 95.2 to 98.3
92.4 to 94.9
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.1
1.9 to 2.7
Iron (Fe), % 0 to 0.5
0.9 to 1.3
Magnesium (Mg), % 0.6 to 1.2
1.3 to 1.8
Manganese (Mn), % 0.4 to 1.0
0
Nickel (Ni), % 0
0.9 to 1.2
Silicon (Si), % 0.7 to 1.3
0.1 to 0.25
Titanium (Ti), % 0 to 0.1
0.040 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0
0 to 0.15