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7075 Aluminum vs. C93700 Bronze

7075 aluminum belongs to the aluminum alloys classification, while C93700 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 C93700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
99
Elongation at Break, % 1.8 to 12
20
Fatigue Strength, MPa 110 to 190
90
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 26
37
Tensile Strength: Ultimate (UTS), MPa 240 to 590
240
Tensile Strength: Yield (Proof), MPa 120 to 510
130

Thermal Properties

Latent Heat of Fusion, J/g 380
170
Maximum Temperature: Mechanical, °C 200
140
Melting Completion (Liquidus), °C 640
930
Melting Onset (Solidus), °C 480
760
Specific Heat Capacity, J/kg-K 870
350
Thermal Conductivity, W/m-K 130
47
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
10
Electrical Conductivity: Equal Weight (Specific), % IACS 98
10

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.3
3.5
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1120
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
40
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
79
Stiffness to Weight: Axial, points 13
6.2
Stiffness to Weight: Bending, points 46
17
Strength to Weight: Axial, points 22 to 54
7.5
Strength to Weight: Bending, points 28 to 52
9.6
Thermal Diffusivity, mm2/s 50
15
Thermal Shock Resistance, points 10 to 25
9.4

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
78 to 82
Iron (Fe), % 0 to 0.5
0 to 0.15
Lead (Pb), % 0
8.0 to 11
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.4
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
9.0 to 11
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
0 to 0.8
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 1.0