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5088 Aluminum vs. 2618A Aluminum

Both 5088 aluminum and 2618A aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is 5088 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
72
Elongation at Break, % 29
4.5
Fatigue Strength, MPa 180
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
27
Shear Strength, MPa 200
260
Tensile Strength: Ultimate (UTS), MPa 310
440
Tensile Strength: Yield (Proof), MPa 150
410

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 200
230
Melting Completion (Liquidus), °C 640
670
Melting Onset (Solidus), °C 540
560
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 120
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
37
Electrical Conductivity: Equal Weight (Specific), % IACS 98
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 9.0
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
19
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 32
41
Strength to Weight: Bending, points 38
44
Thermal Diffusivity, mm2/s 51
59
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 92.4 to 94.8
91.5 to 95.2
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.25
1.8 to 2.7
Iron (Fe), % 0.1 to 0.35
0.9 to 1.4
Magnesium (Mg), % 4.7 to 5.5
1.2 to 1.8
Manganese (Mn), % 0.2 to 0.5
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 0 to 0.2
0.15 to 0.25
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0.2 to 0.4
0 to 0.15
Zirconium (Zr), % 0 to 0.15
0 to 0.25
Residuals, % 0
0 to 0.15