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2117 Aluminum vs. CC381H Copper-nickel

2117 aluminum belongs to the aluminum alloys classification, while CC381H copper-nickel 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 2117 aluminum and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
91
Elastic (Young's, Tensile) Modulus, GPa 71
140
Elongation at Break, % 26
20
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
52
Tensile Strength: Ultimate (UTS), MPa 300
380
Tensile Strength: Yield (Proof), MPa 170
140

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 220
260
Melting Completion (Liquidus), °C 650
1180
Melting Onset (Solidus), °C 550
1120
Specific Heat Capacity, J/kg-K 880
410
Thermal Conductivity, W/m-K 150
30
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 120
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
40
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.2
5.0
Embodied Energy, MJ/kg 150
73
Embodied Water, L/kg 1150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
60
Resilience: Unit (Modulus of Resilience), kJ/m3 190
68
Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 28
12
Strength to Weight: Bending, points 33
13
Thermal Diffusivity, mm2/s 59
8.4
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 91 to 97.6
0 to 0.010
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 2.2 to 4.5
64.5 to 69.9
Iron (Fe), % 0 to 0.7
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.2 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0.6 to 1.2
Nickel (Ni), % 0
29 to 31
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0.2 to 0.8
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.25
0 to 0.5
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0