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3303 Aluminum vs. CC767S Brass

3303 aluminum belongs to the aluminum alloys classification, while CC767S brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 3303 aluminum and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 23
34
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 110
430
Tensile Strength: Yield (Proof), MPa 39
150

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 650
840
Melting Onset (Solidus), °C 620
790
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
32
Electrical Conductivity: Equal Weight (Specific), % IACS 140
36

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
110
Resilience: Unit (Modulus of Resilience), kJ/m3 11
100
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 49
20
Strength to Weight: Axial, points 11
15
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 67
34
Thermal Shock Resistance, points 4.8
14

Alloy Composition


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Aluminum (Al), % 96.6 to 99
0.1 to 0.8
Copper (Cu), % 0.050 to 0.2
58 to 64
Iron (Fe), % 0 to 0.7
0 to 0.5
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 1.0 to 1.5
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0 to 0.6
0 to 0.2
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.3
32.8 to 41.9
Residuals, % 0 to 0.15
0