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238.0 Aluminum vs. CC331G Bronze

238.0 aluminum belongs to the aluminum alloys classification, while CC331G bronze belongs to the copper alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 238.0 aluminum and the bottom bar is CC331G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
110
Elongation at Break, % 1.5
20
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
43
Tensile Strength: Ultimate (UTS), MPa 210
620
Tensile Strength: Yield (Proof), MPa 170
240

Thermal Properties

Latent Heat of Fusion, J/g 430
230
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 600
1060
Melting Onset (Solidus), °C 510
1000
Specific Heat Capacity, J/kg-K 840
440
Thermal Conductivity, W/m-K 100
61
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
13
Electrical Conductivity: Equal Weight (Specific), % IACS 67
14

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 3.4
8.3
Embodied Carbon, kg CO2/kg material 7.4
3.2
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 1040
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
97
Resilience: Unit (Modulus of Resilience), kJ/m3 180
250
Stiffness to Weight: Axial, points 12
7.6
Stiffness to Weight: Bending, points 42
19
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 37
17
Thermal Shock Resistance, points 9.1
22

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
8.5 to 10.5
Copper (Cu), % 9.5 to 10.5
83 to 86.5
Iron (Fe), % 1.0 to 1.5
1.5 to 3.5
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0 to 0.25
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 1.5
Silicon (Si), % 3.6 to 4.4
0 to 0.2
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 1.0 to 1.5
0 to 0.5