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CC762S Brass vs. 7475 Aluminum

CC762S brass belongs to the copper alloys classification, while 7475 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 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 7.3
10 to 12
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 43
26
Tensile Strength: Ultimate (UTS), MPa 840
530 to 590
Tensile Strength: Yield (Proof), MPa 540
440 to 520

Thermal Properties

Latent Heat of Fusion, J/g 200
380
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 920
640
Melting Onset (Solidus), °C 870
480
Specific Heat Capacity, J/kg-K 420
870
Thermal Conductivity, W/m-K 51
140 to 160
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
33 to 42
Electrical Conductivity: Equal Weight (Specific), % IACS 32
98 to 120

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 3.1
8.2
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 350
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
1390 to 1920
Stiffness to Weight: Axial, points 7.8
13
Stiffness to Weight: Bending, points 20
46
Strength to Weight: Axial, points 29
49 to 55
Strength to Weight: Bending, points 25
48 to 52
Thermal Diffusivity, mm2/s 15
53 to 63
Thermal Shock Resistance, points 27
23 to 26

Alloy Composition

Aluminum (Al), % 3.0 to 7.0
88.6 to 91.6
Antimony (Sb), % 0 to 0.030
0
Chromium (Cr), % 0
0.18 to 0.25
Copper (Cu), % 57 to 67
1.2 to 1.9
Iron (Fe), % 1.5 to 4.0
0 to 0.12
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0
1.9 to 2.6
Manganese (Mn), % 2.5 to 5.0
0 to 0.060
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0 to 0.2
0
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 13.4 to 36
5.1 to 6.2
Residuals, % 0
0 to 0.15