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238.0 Aluminum vs. CC381H Copper-nickel

238.0 aluminum belongs to the aluminum alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 28 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 238.0 aluminum and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
140
Elongation at Break, % 1.5
20
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
52
Tensile Strength: Ultimate (UTS), MPa 210
380
Tensile Strength: Yield (Proof), MPa 170
140

Thermal Properties

Latent Heat of Fusion, J/g 430
240
Maximum Temperature: Mechanical, °C 170
260
Melting Completion (Liquidus), °C 600
1180
Melting Onset (Solidus), °C 510
1120
Specific Heat Capacity, J/kg-K 840
410
Thermal Conductivity, W/m-K 100
30
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 67
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
40
Density, g/cm3 3.4
8.9
Embodied Carbon, kg CO2/kg material 7.4
5.0
Embodied Energy, MJ/kg 140
73
Embodied Water, L/kg 1040
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
60
Resilience: Unit (Modulus of Resilience), kJ/m3 180
68
Stiffness to Weight: Axial, points 12
8.6
Stiffness to Weight: Bending, points 42
19
Strength to Weight: Axial, points 17
12
Strength to Weight: Bending, points 23
13
Thermal Diffusivity, mm2/s 37
8.4
Thermal Shock Resistance, points 9.1
13

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.010
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 9.5 to 10.5
64.5 to 69.9
Iron (Fe), % 1.0 to 1.5
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.6 to 1.2
Nickel (Ni), % 0
29 to 31
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 3.6 to 4.4
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 1.0 to 1.5
0 to 0.5