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4145 Aluminum vs. 1080A Aluminum

Both 4145 aluminum and 1080A 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 4145 aluminum and the bottom bar is 1080A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
68
Elongation at Break, % 2.2
2.3 to 34
Fatigue Strength, MPa 48
18 to 50
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 69
49 to 81
Tensile Strength: Ultimate (UTS), MPa 120
74 to 140
Tensile Strength: Yield (Proof), MPa 68
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 540
400
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
640
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 100
230
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
62
Electrical Conductivity: Equal Weight (Specific), % IACS 84
200

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.3
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1040
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
3.1 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 31
2.1 to 100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 12
7.6 to 15
Strength to Weight: Bending, points 19
14 to 22
Thermal Diffusivity, mm2/s 42
94
Thermal Shock Resistance, points 5.5
3.3 to 6.4

Alloy Composition


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Aluminum (Al), % 83 to 87.4
99.8 to 100
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.8
0 to 0.15
Magnesium (Mg), % 0 to 0.15
0 to 0.020
Manganese (Mn), % 0 to 0.15
0 to 0.020
Silicon (Si), % 9.3 to 10.7
0 to 0.15
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.2
0 to 0.060
Residuals, % 0 to 0.15
0