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7075 Aluminum vs. C44500 Brass

7075 aluminum belongs to the aluminum alloys classification, while C44500 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 7075 aluminum and the bottom bar is C44500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 240 to 590
350
Tensile Strength: Yield (Proof), MPa 120 to 510
120

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 200
140
Melting Completion (Liquidus), °C 640
940
Melting Onset (Solidus), °C 480
900
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
25
Electrical Conductivity: Equal Weight (Specific), % IACS 98
27

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1120
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
65
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 22 to 54
12
Strength to Weight: Bending, points 28 to 52
13
Thermal Diffusivity, mm2/s 50
35
Thermal Shock Resistance, points 10 to 25
12

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
70 to 73
Iron (Fe), % 0 to 0.5
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
0
Phosphorus (P), % 0
0.020 to 0.1
Silicon (Si), % 0 to 0.4
0
Tin (Sn), % 0
0.9 to 1.2
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
25.2 to 29.1
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.4