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C99300 Copper vs. 7049 Aluminum

C99300 copper belongs to the copper alloys classification, while 7049 aluminum belongs to the aluminum 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 C99300 copper and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
85.7 to 89.5
Chromium (Cr), % 0
0.1 to 0.22
Cobalt (Co), % 1.0 to 2.0
0
Copper (Cu), % 68.6 to 74.4
1.2 to 1.9
Iron (Fe), % 0.4 to 1.0
0 to 0.35
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
2.0 to 2.9
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 13.5 to 16.5
0
Silicon (Si), % 0 to 0.020
0 to 0.25
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
7.2 to 8.2
Residuals, % 0
0 to 0.15