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C71640 Copper-nickel vs. C75200 Nickel Silver

Both C71640 copper-nickel and C75200 nickel silver are copper alloys. They have 84% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is C75200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
120
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 52
47
Tensile Strength: Ultimate (UTS), MPa 490 to 630
400 to 660

Thermal Properties

Latent Heat of Fusion, J/g 240
210
Maximum Temperature: Mechanical, °C 260
200
Melting Completion (Liquidus), °C 1180
1110
Melting Onset (Solidus), °C 1120
1070
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 29
33
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 40
33
Density, g/cm3 8.9
8.5
Embodied Carbon, kg CO2/kg material 5.0
4.1
Embodied Energy, MJ/kg 73
62
Embodied Water, L/kg 280
300

Common Calculations

Stiffness to Weight: Axial, points 8.7
8.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 20
13 to 21
Strength to Weight: Bending, points 16 to 18
14 to 20
Thermal Diffusivity, mm2/s 8.2
9.8
Thermal Shock Resistance, points 16 to 21
13 to 22

Alloy Composition


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Copper (Cu), % 61.7 to 67.8
63.5 to 66.5
Iron (Fe), % 1.7 to 2.3
0 to 0.25
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 1.5 to 2.5
0 to 0.5
Nickel (Ni), % 29 to 32
16.5 to 19.5
Zinc (Zn), % 0 to 1.0
12.7 to 20
Residuals, % 0 to 0.5
0 to 0.5