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5657 Aluminum vs. 2117 Aluminum

Both 5657 aluminum and 2117 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 5657 aluminum and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 40 to 50
70
Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 6.6 to 15
26
Fatigue Strength, MPa 74 to 88
95
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 92 to 110
200
Tensile Strength: Ultimate (UTS), MPa 150 to 200
300
Tensile Strength: Yield (Proof), MPa 140 to 170
170

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 660
650
Melting Onset (Solidus), °C 640
550
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 210
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
40
Electrical Conductivity: Equal Weight (Specific), % IACS 180
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.4
8.2
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
64
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 15 to 20
28
Strength to Weight: Bending, points 23 to 28
33
Thermal Diffusivity, mm2/s 84
59
Thermal Shock Resistance, points 6.7 to 8.6
12

Alloy Composition

Aluminum (Al), % 98.5 to 99.4
91 to 97.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.1
2.2 to 4.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.1
0 to 0.7
Magnesium (Mg), % 0.6 to 1.0
0.2 to 1.0
Manganese (Mn), % 0 to 0.030
0.4 to 1.0
Silicon (Si), % 0 to 0.080
0.2 to 0.8
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.050
0 to 0.15