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3303 Aluminum vs. 3203 Aluminum

Both 3303 aluminum and 3203 aluminum are aluminum alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is 3303 aluminum and the bottom bar is 3203 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 23
4.5 to 29
Fatigue Strength, MPa 43
46 to 92
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 69
72 to 120
Tensile Strength: Ultimate (UTS), MPa 110
110 to 200
Tensile Strength: Yield (Proof), MPa 39
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 620
620
Specific Heat Capacity, J/kg-K 900
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 9.5
9.0
Density, g/cm3 2.8
2.8
Embodied Carbon, kg CO2/kg material 8.1
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
8.0 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 11
11 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
50
Strength to Weight: Axial, points 11
11 to 20
Strength to Weight: Bending, points 18
19 to 28
Thermal Diffusivity, mm2/s 67
70
Thermal Shock Resistance, points 4.8
4.9 to 8.8

Alloy Composition


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Aluminum (Al), % 96.6 to 99
96.9 to 99
Copper (Cu), % 0.050 to 0.2
0 to 0.050
Iron (Fe), % 0 to 0.7
0 to 0.7
Manganese (Mn), % 1.0 to 1.5
1.0 to 1.5
Silicon (Si), % 0 to 0.6
0 to 0.6
Zinc (Zn), % 0 to 0.3
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15