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5657 Aluminum vs. 4145 Aluminum

Both 5657 aluminum and 4145 aluminum are aluminum alloys. They have 85% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 5657 aluminum and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
73
Elongation at Break, % 6.6 to 15
2.2
Fatigue Strength, MPa 74 to 88
48
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
28
Shear Strength, MPa 92 to 110
69
Tensile Strength: Ultimate (UTS), MPa 150 to 200
120
Tensile Strength: Yield (Proof), MPa 140 to 170
68

Thermal Properties

Latent Heat of Fusion, J/g 400
540
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 660
590
Melting Onset (Solidus), °C 640
520
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 210
100
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
26
Electrical Conductivity: Equal Weight (Specific), % IACS 180
84

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.4
7.6
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 1200
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.7 to 27
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 15 to 20
12
Strength to Weight: Bending, points 23 to 28
19
Thermal Diffusivity, mm2/s 84
42
Thermal Shock Resistance, points 6.7 to 8.6
5.5

Alloy Composition


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Aluminum (Al), % 98.5 to 99.4
83 to 87.4
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0 to 0.1
3.3 to 4.7
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.1
0 to 0.8
Magnesium (Mg), % 0.6 to 1.0
0 to 0.15
Manganese (Mn), % 0 to 0.030
0 to 0.15
Silicon (Si), % 0 to 0.080
9.3 to 10.7
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0 to 0.2
Residuals, % 0 to 0.050
0 to 0.15