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C43000 Brass vs. 7075 Aluminum

C43000 brass belongs to the copper alloys classification, while 7075 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 C43000 brass and the bottom bar is 7075 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 3.0 to 55
1.8 to 12
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
26
Shear Strength, MPa 230 to 410
150 to 340
Tensile Strength: Ultimate (UTS), MPa 320 to 710
240 to 590
Tensile Strength: Yield (Proof), MPa 130 to 550
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 190
380
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1030
640
Melting Onset (Solidus), °C 1000
480
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 18
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 29
10
Density, g/cm3 8.6
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 150
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 1350
110 to 1870
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 10 to 23
22 to 54
Strength to Weight: Bending, points 12 to 20
28 to 52
Thermal Diffusivity, mm2/s 36
50
Thermal Shock Resistance, points 11 to 25
10 to 25

Alloy Composition


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Aluminum (Al), % 0
86.9 to 91.4
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 84 to 87
1.2 to 2.0
Iron (Fe), % 0 to 0.050
0 to 0.5
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0
2.1 to 2.9
Manganese (Mn), % 0
0 to 0.3
Silicon (Si), % 0
0 to 0.4
Tin (Sn), % 1.7 to 2.7
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 9.7 to 14.3
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.5
0 to 0.15