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2017A Aluminum vs. 2618A Aluminum

Both 2017A aluminum and 2618A 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 2017A aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 220
230
Melting Completion (Liquidus), °C 650
670
Melting Onset (Solidus), °C 510
560
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 34
37
Electrical Conductivity: Equal Weight (Specific), % IACS 100
110

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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