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CC762S Brass vs. 7204 Aluminum

CC762S brass belongs to the copper alloys classification, while 7204 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 CC762S brass and the bottom bar is 7204 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 7.3
11 to 13
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 43
26
Tensile Strength: Ultimate (UTS), MPa 840
220 to 380
Tensile Strength: Yield (Proof), MPa 540
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 200
380
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 920
640
Melting Onset (Solidus), °C 870
520
Specific Heat Capacity, J/kg-K 420
880
Thermal Conductivity, W/m-K 51
150
Thermal Expansion, µm/m-K 20
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
39
Electrical Conductivity: Equal Weight (Specific), % IACS 32
120

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.0
2.9
Embodied Carbon, kg CO2/kg material 3.1
8.4
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 350
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
25 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
110 to 710
Stiffness to Weight: Axial, points 7.8
13
Stiffness to Weight: Bending, points 20
47
Strength to Weight: Axial, points 29
21 to 36
Strength to Weight: Bending, points 25
28 to 40
Thermal Diffusivity, mm2/s 15
58
Thermal Shock Resistance, points 27
9.4 to 16

Alloy Composition

Aluminum (Al), % 3.0 to 7.0
90.5 to 94.8
Antimony (Sb), % 0 to 0.030
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 57 to 67
0 to 0.2
Iron (Fe), % 1.5 to 4.0
0 to 0.35
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 2.5 to 5.0
0.2 to 0.7
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0 to 0.3
Tin (Sn), % 0 to 0.2
0
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 13.4 to 36
4.0 to 5.0
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15