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C75700 Nickel Silver vs. C72500 Copper-nickel

Both C75700 nickel silver and C72500 copper-nickel are copper alloys. They have 75% 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 C75700 nickel silver and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 45
45
Tensile Strength: Ultimate (UTS), MPa 590 to 610
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 180
210
Melting Completion (Liquidus), °C 1040
1130
Melting Onset (Solidus), °C 990
1060
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 40
54
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
35
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 3.6
3.6
Embodied Energy, MJ/kg 56
55
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.8
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 20
13 to 24
Strength to Weight: Bending, points 19
14 to 21
Thermal Diffusivity, mm2/s 12
16
Thermal Shock Resistance, points 22 to 23
14 to 27

Alloy Composition

Copper (Cu), % 63.5 to 66.5
85.2 to 89.7
Iron (Fe), % 0 to 0.25
0 to 0.6
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 11 to 13
8.5 to 10.5
Tin (Sn), % 0
1.8 to 2.8
Zinc (Zn), % 19.2 to 25.5
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.2

Comparable Variants