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7075 Aluminum vs. C65500 Bronze

7075 aluminum belongs to the aluminum alloys classification, while C65500 bronze belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 C65500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 1.8 to 12
4.0 to 70
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 150 to 340
260 to 440
Tensile Strength: Ultimate (UTS), MPa 240 to 590
360 to 760
Tensile Strength: Yield (Proof), MPa 120 to 510
120 to 430

Thermal Properties

Latent Heat of Fusion, J/g 380
260
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 640
1030
Melting Onset (Solidus), °C 480
970
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 130
36
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 98
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
29
Calomel Potential, mV -750
-270
Density, g/cm3 3.0
8.6
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1120
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
11 to 450
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
62 to 790
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 22 to 54
12 to 24
Strength to Weight: Bending, points 28 to 52
13 to 21
Thermal Diffusivity, mm2/s 50
10
Thermal Shock Resistance, points 10 to 25
12 to 26

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
91.5 to 96.7
Iron (Fe), % 0 to 0.5
0 to 0.8
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
0.5 to 1.3
Nickel (Ni), % 0
0 to 0.6
Silicon (Si), % 0 to 0.4
2.8 to 3.8
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
0 to 1.5
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.5