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7049 Aluminum vs. C75200 Nickel Silver

7049 aluminum belongs to the aluminum alloys classification, while C75200 nickel silver belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 C75200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 27
47
Tensile Strength: Ultimate (UTS), MPa 510 to 530
400 to 660

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
1110
Melting Onset (Solidus), °C 480
1070
Specific Heat Capacity, J/kg-K 860
400
Thermal Conductivity, W/m-K 130
33
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 3.1
8.5
Embodied Carbon, kg CO2/kg material 8.1
4.1
Embodied Energy, MJ/kg 140
62
Embodied Water, L/kg 1110
300

Common Calculations

Stiffness to Weight: Axial, points 13
8.0
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 46 to 47
13 to 21
Strength to Weight: Bending, points 46 to 47
14 to 20
Thermal Diffusivity, mm2/s 51
9.8
Thermal Shock Resistance, points 22 to 23
13 to 22

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
63.5 to 66.5
Iron (Fe), % 0 to 0.35
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0 to 0.5
Nickel (Ni), % 0
16.5 to 19.5
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
12.7 to 20
Residuals, % 0
0 to 0.5