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C71640 Copper-nickel vs. C55181 Copper

Both C71640 copper-nickel and C55181 copper are copper alloys. They have 65% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is C55181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 52
40
Tensile Strength: Ultimate (UTS), MPa 490 to 630
200

Thermal Properties

Latent Heat of Fusion, J/g 240
190
Maximum Temperature: Mechanical, °C 260
200
Melting Completion (Liquidus), °C 1180
790
Melting Onset (Solidus), °C 1120
710
Specific Heat Capacity, J/kg-K 410
410
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 40
28
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 5.0
2.4
Embodied Energy, MJ/kg 73
38
Embodied Water, L/kg 280
290

Common Calculations

Stiffness to Weight: Axial, points 8.7
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 20
6.5
Strength to Weight: Bending, points 16 to 18
8.9
Thermal Shock Resistance, points 16 to 21
8.2

Alloy Composition


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Copper (Cu), % 61.7 to 67.8
92.4 to 93
Iron (Fe), % 1.7 to 2.3
0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 1.5 to 2.5
0
Nickel (Ni), % 29 to 32
0
Phosphorus (P), % 0
7.0 to 7.5
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0 to 0.15