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7049 Aluminum vs. C72150 Copper-nickel

7049 aluminum belongs to the aluminum alloys classification, while C72150 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
99
Elastic (Young's, Tensile) Modulus, GPa 70
150
Elongation at Break, % 6.2 to 7.0
29
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
55
Shear Strength, MPa 300 to 310
320
Tensile Strength: Ultimate (UTS), MPa 510 to 530
490
Tensile Strength: Yield (Proof), MPa 420 to 450
210

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 180
600
Melting Completion (Liquidus), °C 640
1210
Melting Onset (Solidus), °C 480
1250
Specific Heat Capacity, J/kg-K 860
410
Thermal Conductivity, W/m-K 130
22
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
45
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
6.1
Embodied Energy, MJ/kg 140
88
Embodied Water, L/kg 1110
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
150
Stiffness to Weight: Axial, points 13
9.1
Stiffness to Weight: Bending, points 45
20
Strength to Weight: Axial, points 46 to 47
15
Strength to Weight: Bending, points 46 to 47
15
Thermal Diffusivity, mm2/s 51
6.0
Thermal Shock Resistance, points 22 to 23
18

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
52.5 to 57
Iron (Fe), % 0 to 0.35
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0 to 0.050
Nickel (Ni), % 0
43 to 46
Silicon (Si), % 0 to 0.25
0 to 0.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0 to 0.2
Residuals, % 0
0 to 0.5