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7049 Aluminum vs. C19400 Copper

7049 aluminum belongs to the aluminum alloys classification, while C19400 copper 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 7049 aluminum and the bottom bar is C19400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.2 to 7.0
2.3 to 37
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
44
Shear Strength, MPa 300 to 310
210 to 300
Tensile Strength: Ultimate (UTS), MPa 510 to 530
310 to 630
Tensile Strength: Yield (Proof), MPa 420 to 450
98 to 520

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
1090
Melting Onset (Solidus), °C 480
1080
Specific Heat Capacity, J/kg-K 860
390
Thermal Conductivity, W/m-K 130
260
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
58 to 68
Electrical Conductivity: Equal Weight (Specific), % IACS 110
58 to 69

Otherwise Unclassified Properties

Base Metal Price, % relative 10
30
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
2.6
Embodied Energy, MJ/kg 140
40
Embodied Water, L/kg 1110
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
5.5 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
41 to 1140
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 46 to 47
9.7 to 20
Strength to Weight: Bending, points 46 to 47
11 to 18
Thermal Diffusivity, mm2/s 51
75
Thermal Shock Resistance, points 22 to 23
11 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
96.8 to 97.8
Iron (Fe), % 0 to 0.35
2.1 to 2.6
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Phosphorus (P), % 0
0.015 to 0.15
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0.050 to 0.2
Residuals, % 0
0 to 0.2