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5657 Aluminum vs. 7175 Aluminum

Both 5657 aluminum and 7175 aluminum are aluminum alloys. They have a moderately high 91% 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 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 6.6 to 15
3.8 to 5.9
Fatigue Strength, MPa 74 to 88
150 to 180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 92 to 110
290 to 330
Tensile Strength: Ultimate (UTS), MPa 150 to 200
520 to 570
Tensile Strength: Yield (Proof), MPa 140 to 170
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 640
480
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 210
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
33
Electrical Conductivity: Equal Weight (Specific), % IACS 180
99

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
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.7 to 27
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
1310 to 1730
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 15 to 20
48 to 52
Strength to Weight: Bending, points 23 to 28
48 to 51
Thermal Diffusivity, mm2/s 84
53
Thermal Shock Resistance, points 6.7 to 8.6
23 to 25

Alloy Composition

Aluminum (Al), % 98.5 to 99.4
88 to 91.4
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 0 to 0.1
1.2 to 2.0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.1
0 to 0.2
Magnesium (Mg), % 0.6 to 1.0
2.1 to 2.9
Manganese (Mn), % 0 to 0.030
0 to 0.1
Silicon (Si), % 0 to 0.080
0 to 0.15
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
5.1 to 6.1
Residuals, % 0 to 0.050
0 to 0.15