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7475 Aluminum vs. C14181 Copper

7475 aluminum belongs to the aluminum alloys classification, while C14181 copper 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 7475 aluminum and the bottom bar is C14181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 10 to 12
15
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 530 to 590
210
Tensile Strength: Yield (Proof), MPa 440 to 520
130

Thermal Properties

Latent Heat of Fusion, J/g 380
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 480
1080
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140 to 160
380
Thermal Expansion, µm/m-K 23
17

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 3.0
9.0
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
28
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
69
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 49 to 55
6.5
Strength to Weight: Bending, points 48 to 52
8.8
Thermal Diffusivity, mm2/s 53 to 63
110
Thermal Shock Resistance, points 23 to 26
7.4

Alloy Composition

Aluminum (Al), % 88.6 to 91.6
0
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0
0 to 0.0050
Chromium (Cr), % 0.18 to 0.25
0
Copper (Cu), % 1.2 to 1.9
99.9 to 100
Iron (Fe), % 0 to 0.12
0
Lead (Pb), % 0
0 to 0.0020
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
0 to 0.0020
Residuals, % 0 to 0.15
0