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C72200 Copper-nickel vs. C97400 Nickel Silver

Both C72200 copper-nickel and C97400 nickel silver are copper alloys. They have 77% of their average alloy composition in common. There are 24 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 C72200 copper-nickel and the bottom bar is C97400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 48
44
Tensile Strength: Ultimate (UTS), MPa 350 to 580
260

Thermal Properties

Latent Heat of Fusion, J/g 220
190
Maximum Temperature: Mechanical, °C 230
180
Melting Completion (Liquidus), °C 1180
1100
Melting Onset (Solidus), °C 1120
1070
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 34
27
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.5
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
33
Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 3.9
4.1
Embodied Energy, MJ/kg 59
64
Embodied Water, L/kg 300
320

Common Calculations

Stiffness to Weight: Axial, points 8.0
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 18
8.5
Strength to Weight: Bending, points 12 to 17
11
Thermal Diffusivity, mm2/s 9.6
8.3
Thermal Shock Resistance, points 12 to 20
8.8

Alloy Composition

Chromium (Cr), % 0.3 to 0.7
0
Copper (Cu), % 78.1 to 84.2
58 to 61
Iron (Fe), % 0.5 to 1.0
0 to 1.5
Lead (Pb), % 0 to 0.050
4.5 to 5.5
Manganese (Mn), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 15 to 18
15.5 to 17
Tin (Sn), % 0
2.5 to 3.5
Zinc (Zn), % 0 to 1.0
10 to 19.5
Residuals, % 0
0 to 1.0