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5657 Aluminum vs. 2618A Aluminum

Both 5657 aluminum and 2618A aluminum are aluminum alloys. They have a moderately high 94% 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 5657 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, % 6.6 to 15
4.5
Fatigue Strength, MPa 74 to 88
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 92 to 110
260
Tensile Strength: Ultimate (UTS), MPa 150 to 200
440
Tensile Strength: Yield (Proof), MPa 140 to 170
410

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 180
230
Melting Completion (Liquidus), °C 660
670
Melting Onset (Solidus), °C 640
560
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 210
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
37
Electrical Conductivity: Equal Weight (Specific), % IACS 180
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.4
8.4
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.7 to 27
19
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
1180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 15 to 20
41
Strength to Weight: Bending, points 23 to 28
44
Thermal Diffusivity, mm2/s 84
59
Thermal Shock Resistance, points 6.7 to 8.6
19

Alloy Composition

Aluminum (Al), % 98.5 to 99.4
91.5 to 95.2
Copper (Cu), % 0 to 0.1
1.8 to 2.7
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.1
0.9 to 1.4
Magnesium (Mg), % 0.6 to 1.0
1.2 to 1.8
Manganese (Mn), % 0 to 0.030
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 0 to 0.080
0.15 to 0.25
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.050
0 to 0.15