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C73500 Nickel Silver vs. C78200 Nickel Silver

Both C73500 nickel silver and C78200 nickel silver are copper alloys. They have 83% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C73500 nickel silver and the bottom bar is C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Poisson's Ratio 0.33
0.32
Rockwell B Hardness 73 to 88
65 to 90
Rockwell Superficial 30T Hardness 65 to 75
63 to 75
Shear Modulus, GPa 47
43
Tensile Strength: Ultimate (UTS), MPa 380 to 580
370 to 630

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1140
1000
Melting Onset (Solidus), °C 1090
970
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 36
48
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.5
11
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 35
28
Density, g/cm3 8.7
8.4
Embodied Carbon, kg CO2/kg material 4.0
3.3
Embodied Energy, MJ/kg 61
52
Embodied Water, L/kg 300
310

Common Calculations

Stiffness to Weight: Axial, points 8.0
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12 to 19
12 to 21
Strength to Weight: Bending, points 13 to 18
14 to 19
Thermal Diffusivity, mm2/s 10
15
Thermal Shock Resistance, points 13 to 19
12 to 21

Alloy Composition


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Copper (Cu), % 70.5 to 73.5
63 to 67
Iron (Fe), % 0 to 0.25
0 to 0.35
Lead (Pb), % 0 to 0.1
1.5 to 2.5
Manganese (Mn), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 16.5 to 19.5
7.0 to 9.0
Zinc (Zn), % 5.7 to 13
20.2 to 28.5
Residuals, % 0 to 0.5
0 to 0.5

Comparable Variants