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4145 Aluminum vs. 4015 Aluminum

Both 4145 aluminum and 4015 aluminum are aluminum alloys. They have 88% 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 4015 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
70
Elongation at Break, % 2.2
1.1 to 23
Fatigue Strength, MPa 48
46 to 71
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 69
82 to 120
Tensile Strength: Ultimate (UTS), MPa 120
130 to 220
Tensile Strength: Yield (Proof), MPa 68
50 to 200

Thermal Properties

Latent Heat of Fusion, J/g 540
420
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 100
160
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
41
Electrical Conductivity: Equal Weight (Specific), % IACS 84
130

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
8.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
2.4 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 31
18 to 290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 12
13 to 22
Strength to Weight: Bending, points 19
21 to 30
Thermal Diffusivity, mm2/s 42
66
Thermal Shock Resistance, points 5.5
5.7 to 9.7

Alloy Composition

Aluminum (Al), % 83 to 87.4
94.9 to 97.9
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
0 to 0.2
Iron (Fe), % 0 to 0.8
0 to 0.7
Magnesium (Mg), % 0 to 0.15
0.1 to 0.5
Manganese (Mn), % 0 to 0.15
0.6 to 1.2
Silicon (Si), % 9.3 to 10.7
1.4 to 2.2
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0 to 0.15
0 to 0.15