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7049 Aluminum vs. C19025 Copper

7049 aluminum belongs to the aluminum alloys classification, while C19025 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 7049 aluminum and the bottom bar is C19025 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.2 to 7.0
8.0 to 17
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
43
Shear Strength, MPa 300 to 310
300 to 360
Tensile Strength: Ultimate (UTS), MPa 510 to 530
480 to 620

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 480
1020
Specific Heat Capacity, J/kg-K 860
380
Thermal Conductivity, W/m-K 130
160
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
40

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 140
44
Embodied Water, L/kg 1110
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 46 to 47
15 to 19
Strength to Weight: Bending, points 46 to 47
15 to 18
Thermal Diffusivity, mm2/s 51
47
Thermal Shock Resistance, points 22 to 23
17 to 22

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
97.1 to 98.5
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0
0.8 to 1.2
Phosphorus (P), % 0
0.030 to 0.070
Silicon (Si), % 0 to 0.25
0
Tin (Sn), % 0
0.7 to 1.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0 to 0.2
Residuals, % 0
0 to 0.3