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3105 Aluminum vs. 6066 Aluminum

Both 3105 aluminum and 6066 aluminum are aluminum alloys. They have a very high 97% 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 3105 aluminum and the bottom bar is 6066 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 1.1 to 20
7.8 to 17
Fatigue Strength, MPa 39 to 95
94 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 77 to 140
95 to 240
Tensile Strength: Ultimate (UTS), MPa 120 to 240
160 to 400
Tensile Strength: Yield (Proof), MPa 46 to 220
93 to 360

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 660
650
Melting Onset (Solidus), °C 640
560
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 170
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
40
Electrical Conductivity: Equal Weight (Specific), % IACS 140
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.8
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
23 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
61 to 920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
49
Strength to Weight: Axial, points 12 to 24
16 to 39
Strength to Weight: Bending, points 20 to 31
23 to 43
Thermal Diffusivity, mm2/s 68
61
Thermal Shock Resistance, points 5.2 to 11
6.9 to 17

Alloy Composition

Aluminum (Al), % 96 to 99.5
93 to 97
Chromium (Cr), % 0 to 0.2
0 to 0.4
Copper (Cu), % 0 to 0.3
0.7 to 1.2
Iron (Fe), % 0 to 0.7
0 to 0.5
Magnesium (Mg), % 0.2 to 0.8
0.8 to 1.4
Manganese (Mn), % 0.3 to 0.8
0.6 to 1.1
Silicon (Si), % 0 to 0.6
0.9 to 1.8
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.4
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants