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7475 Aluminum vs. C22000 Bronze

7475 aluminum belongs to the aluminum alloys classification, while C22000 bronze 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 C22000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 10 to 12
1.9 to 45
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 320 to 350
200 to 300
Tensile Strength: Ultimate (UTS), MPa 530 to 590
260 to 520
Tensile Strength: Yield (Proof), MPa 440 to 520
69 to 500

Thermal Properties

Latent Heat of Fusion, J/g 380
200
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 640
1040
Melting Onset (Solidus), °C 480
1020
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140 to 160
190
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 42
44
Electrical Conductivity: Equal Weight (Specific), % IACS 98 to 120
45

Otherwise Unclassified Properties

Base Metal Price, % relative 10
29
Density, g/cm3 3.0
8.7
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
3.7 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
21 to 1110
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 49 to 55
8.1 to 17
Strength to Weight: Bending, points 48 to 52
10 to 17
Thermal Diffusivity, mm2/s 53 to 63
56
Thermal Shock Resistance, points 23 to 26
8.8 to 18

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
89 to 91
Iron (Fe), % 0 to 0.12
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0
Silicon (Si), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
8.7 to 11
Residuals, % 0
0 to 0.2