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7049 Aluminum vs. C99300 Copper

7049 aluminum belongs to the aluminum alloys classification, while C99300 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 C99300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.2 to 7.0
2.0
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
46
Tensile Strength: Ultimate (UTS), MPa 510 to 530
660
Tensile Strength: Yield (Proof), MPa 420 to 450
380

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Maximum Temperature: Mechanical, °C 180
250
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 480
1070
Specific Heat Capacity, J/kg-K 860
450
Thermal Conductivity, W/m-K 130
43
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
35
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.1
4.5
Embodied Energy, MJ/kg 140
70
Embodied Water, L/kg 1110
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
11
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
590
Stiffness to Weight: Axial, points 13
8.3
Stiffness to Weight: Bending, points 45
20
Strength to Weight: Axial, points 46 to 47
22
Strength to Weight: Bending, points 46 to 47
20
Thermal Diffusivity, mm2/s 51
12
Thermal Shock Resistance, points 22 to 23
22

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
10.7 to 11.5
Chromium (Cr), % 0.1 to 0.22
0
Cobalt (Co), % 0
1.0 to 2.0
Copper (Cu), % 1.2 to 1.9
68.6 to 74.4
Iron (Fe), % 0 to 0.35
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0
13.5 to 16.5
Silicon (Si), % 0 to 0.25
0 to 0.020
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0
0 to 0.3