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6081 Aluminum vs. C77100 Nickel Silver

6081 aluminum belongs to the aluminum alloys classification, while C77100 nickel silver belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 6081 aluminum and the bottom bar is C77100 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
45
Tensile Strength: Ultimate (UTS), MPa 310
600
Tensile Strength: Yield (Proof), MPa 270
540

Thermal Properties

Latent Heat of Fusion, J/g 410
180
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 640
990
Melting Onset (Solidus), °C 610
950
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 180
40
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 160
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
27
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.3
3.5
Embodied Energy, MJ/kg 150
56
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 540
1280
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 32
21
Strength to Weight: Bending, points 37
20
Thermal Diffusivity, mm2/s 74
13
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
52 to 56
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.6 to 1.0
0
Manganese (Mn), % 0.1 to 0.45
0 to 0.9
Nickel (Ni), % 0
9.0 to 12
Silicon (Si), % 0.7 to 1.1
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
30.6 to 39
Residuals, % 0
0 to 0.5