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C77100 Nickel Silver vs. C70400 Copper-nickel

Both C77100 nickel silver and C70400 copper-nickel are copper alloys. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is C77100 nickel silver and the bottom bar is C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 45
45
Tensile Strength: Ultimate (UTS), MPa 600
300 to 310
Tensile Strength: Yield (Proof), MPa 540
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 150
210
Melting Completion (Liquidus), °C 990
1120
Melting Onset (Solidus), °C 950
1060
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 40
64
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
14
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
14

Otherwise Unclassified Properties

Base Metal Price, % relative 27
32
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 3.5
3.0
Embodied Energy, MJ/kg 56
47
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1280
38 to 220
Stiffness to Weight: Axial, points 7.8
7.5
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 21
9.3 to 9.8
Strength to Weight: Bending, points 20
11 to 12
Thermal Diffusivity, mm2/s 13
18
Thermal Shock Resistance, points 19
10 to 11

Alloy Composition

Copper (Cu), % 52 to 56
89.8 to 93.6
Iron (Fe), % 0
1.3 to 1.7
Lead (Pb), % 0 to 0.030
0 to 0.050
Manganese (Mn), % 0 to 0.9
0.3 to 0.8
Nickel (Ni), % 9.0 to 12
4.8 to 6.2
Zinc (Zn), % 30.6 to 39
0 to 1.0
Residuals, % 0
0 to 0.5