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C75700 Nickel Silver vs. C18900 Copper

Both C75700 nickel silver and C18900 copper are copper alloys. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is C75700 nickel silver and the bottom bar is C18900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 3.2 to 22
14 to 48
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 45
43
Shear Strength, MPa 350 to 370
190 to 300
Tensile Strength: Ultimate (UTS), MPa 590 to 610
260 to 500
Tensile Strength: Yield (Proof), MPa 470 to 580
67 to 390

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 1040
1080
Melting Onset (Solidus), °C 990
1020
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 40
130
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
30

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 56
42
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
65 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
20 to 660
Stiffness to Weight: Axial, points 7.8
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 19 to 20
8.2 to 16
Strength to Weight: Bending, points 19
10 to 16
Thermal Diffusivity, mm2/s 12
38
Thermal Shock Resistance, points 22 to 23
9.3 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 63.5 to 66.5
97.7 to 99.15
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0 to 0.050
0 to 0.020
Manganese (Mn), % 0 to 0.5
0.1 to 0.3
Nickel (Ni), % 11 to 13
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0.15 to 0.4
Tin (Sn), % 0
0.6 to 0.9
Zinc (Zn), % 19.2 to 25.5
0 to 0.1
Residuals, % 0 to 0.5
0 to 0.5

Comparable Variants