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6065 Aluminum vs. 3303 Aluminum

Both 6065 aluminum and 3303 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 6065 aluminum and the bottom bar is 3303 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 4.5 to 11
23
Fatigue Strength, MPa 96 to 110
43
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190 to 230
69
Tensile Strength: Ultimate (UTS), MPa 310 to 400
110
Tensile Strength: Yield (Proof), MPa 270 to 380
39

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 590
620
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 170
170
Thermal Expansion, µm/m-K 23
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.8
2.8
Embodied Carbon, kg CO2/kg material 8.4
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
20
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
11
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
49
Strength to Weight: Axial, points 31 to 40
11
Strength to Weight: Bending, points 36 to 43
18
Thermal Diffusivity, mm2/s 67
67
Thermal Shock Resistance, points 14 to 18
4.8

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
96.6 to 99
Bismuth (Bi), % 0.5 to 1.5
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0.15 to 0.4
0.050 to 0.2
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
Manganese (Mn), % 0 to 0.15
1.0 to 1.5
Silicon (Si), % 0.4 to 0.8
0 to 0.6
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0 to 0.3
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.15