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C99300 Copper vs. 2025 Aluminum

C99300 copper belongs to the copper alloys classification, while 2025 aluminum belongs to the aluminum alloys. There are 29 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 C99300 copper and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
110
Elastic (Young's, Tensile) Modulus, GPa 120
72
Elongation at Break, % 2.0
15
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 46
27
Tensile Strength: Ultimate (UTS), MPa 660
400
Tensile Strength: Yield (Proof), MPa 380
260

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 250
190
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1070
520
Specific Heat Capacity, J/kg-K 450
870
Thermal Conductivity, W/m-K 43
150
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
120

Otherwise Unclassified Properties

Base Metal Price, % relative 35
10
Density, g/cm3 8.2
3.0
Embodied Carbon, kg CO2/kg material 4.5
7.9
Embodied Energy, MJ/kg 70
150
Embodied Water, L/kg 400
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
55
Resilience: Unit (Modulus of Resilience), kJ/m3 590
450
Stiffness to Weight: Axial, points 8.3
13
Stiffness to Weight: Bending, points 20
46
Strength to Weight: Axial, points 22
37
Strength to Weight: Bending, points 20
40
Thermal Diffusivity, mm2/s 12
58
Thermal Shock Resistance, points 22
18

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
90.9 to 95.2
Chromium (Cr), % 0
0 to 0.1
Cobalt (Co), % 1.0 to 2.0
0
Copper (Cu), % 68.6 to 74.4
3.9 to 5.0
Iron (Fe), % 0.4 to 1.0
0 to 1.0
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0.4 to 1.2
Nickel (Ni), % 13.5 to 16.5
0
Silicon (Si), % 0 to 0.020
0.5 to 1.2
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15