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7475 Aluminum vs. CC760S Brass

7475 aluminum belongs to the aluminum alloys classification, while CC760S brass belongs to the copper 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 7475 aluminum and the bottom bar is CC760S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 10 to 12
22
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 530 to 590
180
Tensile Strength: Yield (Proof), MPa 440 to 520
80

Thermal Properties

Latent Heat of Fusion, J/g 380
190
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
1000
Melting Onset (Solidus), °C 480
940
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140 to 160
150
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 42
38
Electrical Conductivity: Equal Weight (Specific), % IACS 98 to 120
40

Otherwise Unclassified Properties

Base Metal Price, % relative 10
28
Density, g/cm3 3.0
8.6
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
33
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
29
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 49 to 55
5.8
Strength to Weight: Bending, points 48 to 52
8.2
Thermal Diffusivity, mm2/s 53 to 63
45
Thermal Shock Resistance, points 23 to 26
6.2

Alloy Composition

Aluminum (Al), % 88.6 to 91.6
0 to 0.010
Arsenic (As), % 0
0.050 to 0.15
Chromium (Cr), % 0.18 to 0.25
0
Copper (Cu), % 1.2 to 1.9
83 to 88
Iron (Fe), % 0 to 0.12
0 to 0.15
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0 to 0.1
Nickel (Ni), % 0
0 to 0.1
Silicon (Si), % 0 to 0.1
0 to 0.020
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
10.7 to 17
Residuals, % 0 to 0.15
0