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C74500 Nickel Silver vs. C19700 Copper

Both C74500 nickel silver and C19700 copper are copper alloys. They have 65% of their average alloy composition in common.

For each property being compared, the top bar is C74500 nickel silver and the bottom bar is C19700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 3.0 to 24
2.4 to 13
Poisson's Ratio 0.32
0.34
Rockwell B Hardness 66 to 94
67 to 75
Rockwell Superficial 30T Hardness 60 to 79
65 to 72
Shear Modulus, GPa 44
43
Shear Strength, MPa 310 to 380
240 to 300
Tensile Strength: Ultimate (UTS), MPa 390 to 700
400 to 530
Tensile Strength: Yield (Proof), MPa 380 to 600
330 to 520

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1020
1090
Melting Onset (Solidus), °C 970
1040
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 45
250
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
86 to 88
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
87 to 89

Otherwise Unclassified Properties

Base Metal Price, % relative 29
30
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 3.4
2.6
Embodied Energy, MJ/kg 54
41
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 160
12 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 620 to 1540
460 to 1160
Stiffness to Weight: Axial, points 7.7
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13 to 23
12 to 16
Strength to Weight: Bending, points 14 to 21
14 to 16
Thermal Diffusivity, mm2/s 14
73
Thermal Shock Resistance, points 13 to 23
14 to 19

Alloy Composition


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Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 63.5 to 66.5
97.4 to 99.59
Iron (Fe), % 0 to 0.25
0.3 to 1.2
Lead (Pb), % 0 to 0.1
0 to 0.050
Magnesium (Mg), % 0
0.010 to 0.2
Manganese (Mn), % 0 to 0.5
0 to 0.050
Nickel (Ni), % 9.0 to 11
0 to 0.050
Phosphorus (P), % 0
0.1 to 0.4
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 21.2 to 27.5
0 to 0.2
Residuals, % 0 to 0.5
0 to 0.2

Comparable Variants