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7475 Aluminum vs. C43000 Brass

7475 aluminum belongs to the aluminum alloys classification, while C43000 brass belongs to the copper alloys. There are 29 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 C43000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 10 to 12
3.0 to 55
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 320 to 350
230 to 410
Tensile Strength: Ultimate (UTS), MPa 530 to 590
320 to 710
Tensile Strength: Yield (Proof), MPa 440 to 520
130 to 550

Thermal Properties

Latent Heat of Fusion, J/g 380
190
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
1030
Melting Onset (Solidus), °C 480
1000
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 140 to 160
120
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 42
27
Electrical Conductivity: Equal Weight (Specific), % IACS 98 to 120
28

Otherwise Unclassified Properties

Base Metal Price, % relative 10
29
Density, g/cm3 3.0
8.6
Embodied Carbon, kg CO2/kg material 8.2
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1130
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
20 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
82 to 1350
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 49 to 55
10 to 23
Strength to Weight: Bending, points 48 to 52
12 to 20
Thermal Diffusivity, mm2/s 53 to 63
36
Thermal Shock Resistance, points 23 to 26
11 to 25

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
84 to 87
Iron (Fe), % 0 to 0.12
0 to 0.050
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
1.7 to 2.7
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
9.7 to 14.3
Residuals, % 0
0 to 0.5