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7129 Aluminum vs. C79600 Nickel Silver

7129 Aluminum belongs to the aluminum alloys classification, while C79600 nickel silver 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 7129 Aluminum and the bottom bar is C79600 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 9.0 to 9.1
15
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 26
43
Shear Strength, MPa 250 to 260
290
Tensile Strength: Ultimate (UTS), MPa 430
480
Tensile Strength: Yield (Proof), MPa 380 to 390
300

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 630
930
Melting Onset (Solidus), °C 510
880
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 150
36
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 8.3
3.5
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
63
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
400
Stiffness to Weight: Axial, points 13
7.8
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 41
17
Strength to Weight: Bending, points 43 to 44
17
Thermal Diffusivity, mm2/s 58
12
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 91 to 94
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.5 to 0.9
43.5 to 46.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0
0.8 to 1.2
Magnesium (Mg), % 1.3 to 2.0
0
Manganese (Mn), % 0 to 0.1
1.5 to 2.5
Nickel (Ni), % 0
9.0 to 11
Silicon (Si), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
38.3 to 45.2
Residuals, % 0
0 to 0.5