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C18200 Copper vs. C77400 Nickel Silver

Both C18200 copper and C77400 nickel silver are copper alloys. They have 45% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C18200 copper and the bottom bar is C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 11 to 40
25
Poisson's Ratio 0.34
0.3
Rockwell B Hardness 65 to 82
73
Shear Modulus, GPa 44
42
Shear Strength, MPa 210 to 320
360
Tensile Strength: Ultimate (UTS), MPa 310 to 530
570
Tensile Strength: Yield (Proof), MPa 97 to 450
250

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1080
810
Melting Onset (Solidus), °C 1070
770
Specific Heat Capacity, J/kg-K 390
390
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
27
Electrical Conductivity: Equal Weight (Specific), % IACS 81
31

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 41
57
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 96
120
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
290
Stiffness to Weight: Axial, points 7.3
7.7
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 9.6 to 16
20
Strength to Weight: Bending, points 11 to 16
19
Thermal Shock Resistance, points 11 to 18
18

Alloy Composition

Chromium (Cr), % 0.6 to 1.2
0
Copper (Cu), % 98.6 to 99.4
43 to 47
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.050
0 to 0.2
Nickel (Ni), % 0
9.0 to 11
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0
41.3 to 48
Residuals, % 0
0 to 0.5