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4145 Aluminum vs. 7116 Aluminum

Both 4145 aluminum and 7116 aluminum are aluminum alloys. They have 87% 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 4145 aluminum and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
69
Elongation at Break, % 2.2
7.8
Fatigue Strength, MPa 48
160
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 69
220
Tensile Strength: Ultimate (UTS), MPa 120
370
Tensile Strength: Yield (Proof), MPa 68
330

Thermal Properties

Latent Heat of Fusion, J/g 540
380
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
520
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 21
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
46
Electrical Conductivity: Equal Weight (Specific), % IACS 84
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.8
2.9
Embodied Carbon, kg CO2/kg material 7.6
8.2
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
28
Resilience: Unit (Modulus of Resilience), kJ/m3 31
790
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 12
35
Strength to Weight: Bending, points 19
39
Thermal Diffusivity, mm2/s 42
58
Thermal Shock Resistance, points 5.5
16

Alloy Composition


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Aluminum (Al), % 83 to 87.4
91.5 to 94.5
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
0.5 to 1.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.8
0 to 0.3
Magnesium (Mg), % 0 to 0.15
0.8 to 1.4
Manganese (Mn), % 0 to 0.15
0 to 0.050
Silicon (Si), % 9.3 to 10.7
0 to 0.15
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
4.2 to 5.2
Residuals, % 0 to 0.15
0 to 0.15