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2618A Aluminum vs. 2017A Aluminum

Both 2618A aluminum and 2017A aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 2618A aluminum and the bottom bar is 2017A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
71
Elongation at Break, % 4.5
2.2 to 14
Fatigue Strength, MPa 120
92 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 260
120 to 270
Tensile Strength: Ultimate (UTS), MPa 440
200 to 460
Tensile Strength: Yield (Proof), MPa 410
110 to 290

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 230
220
Melting Completion (Liquidus), °C 670
650
Melting Onset (Solidus), °C 560
510
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
34
Electrical Conductivity: Equal Weight (Specific), % IACS 110
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.4
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
6.7 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
90 to 570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
46
Strength to Weight: Axial, points 41
19 to 42
Strength to Weight: Bending, points 44
26 to 44
Thermal Diffusivity, mm2/s 59
56
Thermal Shock Resistance, points 19
8.9 to 20

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
91.3 to 95.5
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 1.8 to 2.7
3.5 to 4.5
Iron (Fe), % 0.9 to 1.4
0 to 0.7
Magnesium (Mg), % 1.2 to 1.8
0.4 to 1.0
Manganese (Mn), % 0 to 0.25
0.4 to 1.0
Nickel (Ni), % 0.8 to 1.4
0
Silicon (Si), % 0.15 to 0.25
0.2 to 0.8
Titanium (Ti), % 0 to 0.2
0 to 0.25
Zinc (Zn), % 0 to 0.15
0 to 0.25
Zirconium (Zr), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15