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4145 Aluminum vs. 4006 Aluminum

Both 4145 aluminum and 4006 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 (2, in this case) are not shown.

For each property being compared, the top bar is 4145 aluminum and the bottom bar is 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
69
Elongation at Break, % 2.2
3.4 to 24
Fatigue Strength, MPa 48
35 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 69
70 to 91
Tensile Strength: Ultimate (UTS), MPa 120
110 to 160
Tensile Strength: Yield (Proof), MPa 68
62 to 140

Thermal Properties

Latent Heat of Fusion, J/g 540
410
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
620
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 100
220
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
56
Electrical Conductivity: Equal Weight (Specific), % IACS 84
180

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.0
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
5.1 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 31
28 to 130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 12
11 to 16
Strength to Weight: Bending, points 19
19 to 24
Thermal Diffusivity, mm2/s 42
89
Thermal Shock Resistance, points 5.5
4.9 to 7.0

Alloy Composition

Aluminum (Al), % 83 to 87.4
97.4 to 98.7
Chromium (Cr), % 0 to 0.15
0 to 0.2
Copper (Cu), % 3.3 to 4.7
0 to 0.1
Iron (Fe), % 0 to 0.8
0.5 to 0.8
Magnesium (Mg), % 0 to 0.15
0 to 0.010
Manganese (Mn), % 0 to 0.15
0 to 0.050
Silicon (Si), % 9.3 to 10.7
0.8 to 1.2
Zinc (Zn), % 0 to 0.2
0 to 0.050
Residuals, % 0 to 0.15
0 to 0.15