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C97400 Nickel Silver vs. C72900 Copper-nickel

Both C97400 nickel silver and C72900 copper-nickel are copper alloys. They have 78% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C97400 nickel silver and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 20
6.0 to 20
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 44
45
Tensile Strength: Ultimate (UTS), MPa 260
870 to 1080
Tensile Strength: Yield (Proof), MPa 120
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 180
210
Melting Completion (Liquidus), °C 1100
1120
Melting Onset (Solidus), °C 1070
950
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 27
29
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 33
39
Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 4.1
4.6
Embodied Energy, MJ/kg 64
72
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 59
2030 to 3490
Stiffness to Weight: Axial, points 7.5
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.5
27 to 34
Strength to Weight: Bending, points 11
23 to 27
Thermal Diffusivity, mm2/s 8.3
8.6
Thermal Shock Resistance, points 8.8
31 to 38

Alloy Composition

Copper (Cu), % 58 to 61
74.1 to 78
Iron (Fe), % 0 to 1.5
0 to 0.5
Lead (Pb), % 4.5 to 5.5
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 0.5
0 to 0.3
Nickel (Ni), % 15.5 to 17
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 2.5 to 3.5
7.5 to 8.5
Zinc (Zn), % 10 to 19.5
0 to 0.5
Residuals, % 0
0 to 0.3