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C18200 Copper vs. C77000 Nickel Silver

Both C18200 copper and C77000 nickel silver are copper alloys. They have 55% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C18200 copper and the bottom bar is C77000 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Poisson's Ratio 0.34
0.31
Rockwell B Hardness 65 to 82
52 to 99
Shear Modulus, GPa 44
46
Tensile Strength: Ultimate (UTS), MPa 310 to 530
420 to 800

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1080
1050
Melting Onset (Solidus), °C 1070
1000
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 320
29
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 81
6.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
31
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 2.6
4.1
Embodied Energy, MJ/kg 41
63
Embodied Water, L/kg 310
300

Common Calculations

Stiffness to Weight: Axial, points 7.3
8.1
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.6 to 16
14 to 27
Strength to Weight: Bending, points 11 to 16
15 to 23
Thermal Diffusivity, mm2/s 93
8.8
Thermal Shock Resistance, points 11 to 18
15 to 28

Alloy Composition

Chromium (Cr), % 0.6 to 1.2
0
Copper (Cu), % 98.6 to 99.4
53.5 to 56.5
Iron (Fe), % 0 to 0.1
0 to 0.25
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
16.5 to 19.5
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0
22.7 to 30
Residuals, % 0
0 to 0.5