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7475 Aluminum vs. C35000 Brass

7475 aluminum belongs to the aluminum alloys classification, while C35000 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 C35000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 530 to 590
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 380
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 640
920
Melting Onset (Solidus), °C 480
890
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 140 to 160
120
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 42
26
Electrical Conductivity: Equal Weight (Specific), % IACS 98 to 120
29

Otherwise Unclassified Properties

Base Metal Price, % relative 10
23
Density, g/cm3 3.0
8.1
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1130
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 49 to 55
12 to 22
Strength to Weight: Bending, points 48 to 52
13 to 21
Thermal Diffusivity, mm2/s 53 to 63
37
Thermal Shock Resistance, points 23 to 26
11 to 22

Alloy Composition

Aluminum (Al), % 88.6 to 91.6
0
Chromium (Cr), % 0.18 to 0.25
0
Copper (Cu), % 1.2 to 1.9
60 to 63
Iron (Fe), % 0 to 0.12
0 to 0.1
Lead (Pb), % 0
0.8 to 2.0
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0
Silicon (Si), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
34.5 to 39.2
Residuals, % 0
0 to 0.4