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7049 Aluminum vs. C70260 Copper

7049 aluminum belongs to the aluminum alloys classification, while C70260 copper belongs to the copper 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 7049 aluminum and the bottom bar is C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.2 to 7.0
9.5 to 19
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
44
Shear Strength, MPa 300 to 310
320 to 450
Tensile Strength: Ultimate (UTS), MPa 510 to 530
520 to 760
Tensile Strength: Yield (Proof), MPa 420 to 450
410 to 650

Thermal Properties

Latent Heat of Fusion, J/g 370
220
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
1060
Melting Onset (Solidus), °C 480
1040
Specific Heat Capacity, J/kg-K 860
390
Thermal Conductivity, W/m-K 130
160
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 110
40 to 51

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
43
Embodied Water, L/kg 1110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
710 to 1810
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 46 to 47
16 to 24
Strength to Weight: Bending, points 46 to 47
16 to 21
Thermal Diffusivity, mm2/s 51
45
Thermal Shock Resistance, points 22 to 23
18 to 27

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
95.8 to 98.8
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
1.0 to 3.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0.2 to 0.7
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0
0 to 0.5