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CC755S Brass vs. A444.0 Aluminum

CC755S brass belongs to the copper alloys classification, while A444.0 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 CC755S brass and the bottom bar is A444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 9.5
18
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 390
160
Tensile Strength: Yield (Proof), MPa 250
66

Thermal Properties

Latent Heat of Fusion, J/g 170
500
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 820
630
Melting Onset (Solidus), °C 780
590
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 120
160
Thermal Expansion, µm/m-K 21
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
41
Electrical Conductivity: Equal Weight (Specific), % IACS 30
140

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.5
Density, g/cm3 8.1
2.6
Embodied Carbon, kg CO2/kg material 2.7
7.9
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
24
Resilience: Unit (Modulus of Resilience), kJ/m3 290
31
Stiffness to Weight: Axial, points 7.1
15
Stiffness to Weight: Bending, points 19
53
Strength to Weight: Axial, points 14
17
Strength to Weight: Bending, points 15
25
Thermal Diffusivity, mm2/s 38
68
Thermal Shock Resistance, points 13
7.3

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
91.6 to 93.5
Copper (Cu), % 59.5 to 61
0 to 0.1
Iron (Fe), % 0.050 to 0.2
0 to 0.2
Lead (Pb), % 1.2 to 1.7
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.050
0 to 0.1
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0 to 0.050
6.5 to 7.5
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 35.8 to 38.9
0 to 0.1
Residuals, % 0
0 to 0.15