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238.0 Aluminum vs. CC765S Brass

238.0 aluminum belongs to the aluminum alloys classification, while CC765S brass belongs to the copper alloys. 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 CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
110
Elongation at Break, % 1.5
21
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 28
42
Tensile Strength: Ultimate (UTS), MPa 210
540
Tensile Strength: Yield (Proof), MPa 170
220

Thermal Properties

Latent Heat of Fusion, J/g 430
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 600
860
Melting Onset (Solidus), °C 510
820
Specific Heat Capacity, J/kg-K 840
400
Thermal Conductivity, W/m-K 100
91
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
30
Electrical Conductivity: Equal Weight (Specific), % IACS 67
34

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 3.4
8.0
Embodied Carbon, kg CO2/kg material 7.4
3.0
Embodied Energy, MJ/kg 140
51
Embodied Water, L/kg 1040
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
90
Resilience: Unit (Modulus of Resilience), kJ/m3 180
220
Stiffness to Weight: Axial, points 12
7.6
Stiffness to Weight: Bending, points 42
20
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 37
28
Thermal Shock Resistance, points 9.1
17

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Copper (Cu), % 9.5 to 10.5
51 to 65
Iron (Fe), % 1.0 to 1.5
0.5 to 2.0
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.3 to 3.0
Nickel (Ni), % 0
0 to 6.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 3.6 to 4.4
0 to 0.1
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 1.0 to 1.5
19.8 to 47.7