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C74400 Nickel Silver vs. C19800 Copper

Both C74400 nickel silver and C19800 copper are copper alloys. They have 65% of their average alloy composition in common.

For each property being compared, the top bar is C74400 nickel silver and the bottom bar is C19800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 43
9.0 to 12
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
43
Shear Strength, MPa 240
260 to 330
Tensile Strength: Ultimate (UTS), MPa 350
430 to 550
Tensile Strength: Yield (Proof), MPa 120
420 to 550

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 140
200
Melting Completion (Liquidus), °C 930
1070
Melting Onset (Solidus), °C 910
1050
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
260
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
61
Electrical Conductivity: Equal Weight (Specific), % IACS 29
62

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 48
43
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
49 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 63
770 to 1320
Stiffness to Weight: Axial, points 7.4
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12
14 to 17
Strength to Weight: Bending, points 14
14 to 17
Thermal Diffusivity, mm2/s 37
75
Thermal Shock Resistance, points 12
15 to 20

Alloy Composition


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Copper (Cu), % 62 to 66
95.7 to 99.47
Iron (Fe), % 0 to 0.050
0.020 to 0.5
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
0.1 to 1.0
Nickel (Ni), % 2.0 to 4.0
0
Phosphorus (P), % 0
0.010 to 0.1
Tin (Sn), % 0
0.1 to 1.0
Zinc (Zn), % 29.6 to 36
0.3 to 1.5
Residuals, % 0 to 0.3
0 to 0.2