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2618 Aluminum vs. 6063A Aluminum

Both 2618 aluminum and 6063A aluminum are aluminum alloys. They have a very high 95% 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 2618 aluminum and the bottom bar is 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
68
Elongation at Break, % 5.8
6.7 to 18
Fatigue Strength, MPa 110
53 to 80
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 260
78 to 150
Tensile Strength: Ultimate (UTS), MPa 420
130 to 260
Tensile Strength: Yield (Proof), MPa 350
55 to 200

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
620
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 160
200
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
49 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 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
13 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 850
22 to 280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 40
13 to 26
Strength to Weight: Bending, points 42
21 to 33
Thermal Diffusivity, mm2/s 62
83
Thermal Shock Resistance, points 19
5.6 to 11

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
97.5 to 99
Chromium (Cr), % 0
0 to 0.050
Copper (Cu), % 1.9 to 2.7
0 to 0.1
Iron (Fe), % 0.9 to 1.3
0.15 to 0.35
Magnesium (Mg), % 1.3 to 1.8
0.6 to 0.9
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0.9 to 1.2
0
Silicon (Si), % 0.1 to 0.25
0.3 to 0.6
Titanium (Ti), % 0.040 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.1
0 to 0.15
Residuals, % 0
0 to 0.15