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6065 Aluminum vs. 4115 Aluminum

Both 6065 aluminum and 4115 aluminum are aluminum alloys. They have a very high 98% 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 6065 aluminum and the bottom bar is 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 4.5 to 11
1.1 to 11
Fatigue Strength, MPa 96 to 110
39 to 76
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190 to 230
71 to 130
Tensile Strength: Ultimate (UTS), MPa 310 to 400
120 to 220
Tensile Strength: Yield (Proof), MPa 270 to 380
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
590
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 170
160
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
41
Electrical Conductivity: Equal Weight (Specific), % IACS 140
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.4
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
11 to 270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
50
Strength to Weight: Axial, points 31 to 40
12 to 23
Strength to Weight: Bending, points 36 to 43
20 to 30
Thermal Diffusivity, mm2/s 67
66
Thermal Shock Resistance, points 14 to 18
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
94.6 to 97.4
Bismuth (Bi), % 0.5 to 1.5
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0.15 to 0.4
0.1 to 0.5
Iron (Fe), % 0 to 0.7
0 to 0.7
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.8 to 1.2
0.1 to 0.5
Manganese (Mn), % 0 to 0.15
0.6 to 1.2
Silicon (Si), % 0.4 to 0.8
1.8 to 2.2
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0 to 0.2
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.15