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7049 Aluminum vs. C19500 Copper

7049 aluminum belongs to the aluminum alloys classification, while C19500 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 C19500 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 38
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
44
Shear Strength, MPa 300 to 310
260 to 360
Tensile Strength: Ultimate (UTS), MPa 510 to 530
380 to 640
Tensile Strength: Yield (Proof), MPa 420 to 450
120 to 600

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
1090
Specific Heat Capacity, J/kg-K 860
390
Thermal Conductivity, W/m-K 130
200
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
50 to 56
Electrical Conductivity: Equal Weight (Specific), % IACS 110
50 to 57

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 1110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
14 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
59 to 1530
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 46 to 47
12 to 20
Strength to Weight: Bending, points 46 to 47
13 to 18
Thermal Diffusivity, mm2/s 51
58
Thermal Shock Resistance, points 22 to 23
13 to 23

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0 to 0.020
Chromium (Cr), % 0.1 to 0.22
0
Cobalt (Co), % 0
0.3 to 1.3
Copper (Cu), % 1.2 to 1.9
94.9 to 98.6
Iron (Fe), % 0 to 0.35
1.0 to 2.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Phosphorus (P), % 0
0.010 to 0.35
Silicon (Si), % 0 to 0.25
0
Tin (Sn), % 0
0.1 to 1.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0 to 0.2
Residuals, % 0
0 to 0.2