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CC767S Brass vs. 238.0 Aluminum

CC767S brass belongs to the copper alloys classification, while 238.0 aluminum belongs to the aluminum 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 CC767S brass and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
76
Elongation at Break, % 34
1.5
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
28
Tensile Strength: Ultimate (UTS), MPa 430
210
Tensile Strength: Yield (Proof), MPa 150
170

Thermal Properties

Latent Heat of Fusion, J/g 180
430
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 840
600
Melting Onset (Solidus), °C 790
510
Specific Heat Capacity, J/kg-K 390
840
Thermal Conductivity, W/m-K 110
100
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
25
Electrical Conductivity: Equal Weight (Specific), % IACS 36
67

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 8.0
3.4
Embodied Carbon, kg CO2/kg material 2.7
7.4
Embodied Energy, MJ/kg 47
140
Embodied Water, L/kg 330
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 100
180
Stiffness to Weight: Axial, points 7.3
12
Stiffness to Weight: Bending, points 20
42
Strength to Weight: Axial, points 15
17
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 34
37
Thermal Shock Resistance, points 14
9.1

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
81.9 to 84.9
Copper (Cu), % 58 to 64
9.5 to 10.5
Iron (Fe), % 0 to 0.5
1.0 to 1.5
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0
0 to 0.25
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Silicon (Si), % 0 to 0.2
3.6 to 4.4
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 32.8 to 41.9
1.0 to 1.5