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CC751S Brass vs. 2018 Aluminum

CC751S brass belongs to the copper alloys classification, while 2018 aluminum belongs to the aluminum alloys. There are 29 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 CC751S brass and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
120
Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 5.6
9.6
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 450
420
Tensile Strength: Yield (Proof), MPa 320
310

Thermal Properties

Latent Heat of Fusion, J/g 190
390
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 850
640
Melting Onset (Solidus), °C 810
510
Specific Heat Capacity, J/kg-K 390
870
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 20
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
40
Electrical Conductivity: Equal Weight (Specific), % IACS 28
120

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.1
3.1
Embodied Carbon, kg CO2/kg material 2.8
8.1
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
37
Resilience: Unit (Modulus of Resilience), kJ/m3 480
670
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 15
38
Strength to Weight: Bending, points 16
41
Thermal Diffusivity, mm2/s 35
57
Thermal Shock Resistance, points 15
19

Alloy Composition


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Aluminum (Al), % 0 to 0.1
89.7 to 94.4
Antimony (Sb), % 0 to 0.5
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 62.7 to 66
3.5 to 4.5
Iron (Fe), % 0.25 to 0.5
0 to 1.0
Lead (Pb), % 0.8 to 2.2
0
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0 to 0.15
0 to 0.2
Nickel (Ni), % 0 to 0.8
1.7 to 2.3
Silicon (Si), % 0.65 to 1.1
0 to 0.9
Tin (Sn), % 0 to 0.8
0
Zinc (Zn), % 27.9 to 35.6
0 to 0.25
Residuals, % 0
0 to 0.15