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2618A Aluminum vs. 2618 Aluminum

Both 2618A aluminum and 2618 aluminum are aluminum alloys. Their average alloy composition is basically identical. 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 2618A aluminum and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
71
Elongation at Break, % 4.5
5.8
Fatigue Strength, MPa 120
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 260
260
Tensile Strength: Ultimate (UTS), MPa 440
420
Tensile Strength: Yield (Proof), MPa 410
350

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 230
210
Melting Completion (Liquidus), °C 670
640
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 150
160
Thermal Expansion, µm/m-K 23
22

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.0
2.9
Embodied Carbon, kg CO2/kg material 8.4
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
23
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
47
Strength to Weight: Axial, points 41
40
Strength to Weight: Bending, points 44
42
Thermal Diffusivity, mm2/s 59
62
Thermal Shock Resistance, points 19
19

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
92.4 to 94.9
Copper (Cu), % 1.8 to 2.7
1.9 to 2.7
Iron (Fe), % 0.9 to 1.4
0.9 to 1.3
Magnesium (Mg), % 1.2 to 1.8
1.3 to 1.8
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0.8 to 1.4
0.9 to 1.2
Silicon (Si), % 0.15 to 0.25
0.1 to 0.25
Titanium (Ti), % 0 to 0.2
0.040 to 0.1
Zinc (Zn), % 0 to 0.15
0 to 0.1
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.15