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Commercially Pure Silver vs. C78200 Nickel Silver

Commercially pure silver belongs to the otherwise unclassified metals classification, while C78200 nickel silver belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

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

Commercially Pure SilverUNS C78200 Leaded Nickel Silver
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 1.1 to 29
3.0 to 40
Poisson's Ratio 0.37
0.32
Shear Modulus, GPa 26
43
Shear Strength, MPa 120 to 190
280 to 400
Tensile Strength: Ultimate (UTS), MPa 190 to 340
370 to 630

Thermal Properties

Latent Heat of Fusion, J/g 110
190
Melting Completion (Liquidus), °C 960
1000
Melting Onset (Solidus), °C 960
970
Specific Heat Capacity, J/kg-K 240
390
Thermal Conductivity, W/m-K 420
48
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
11
Electrical Conductivity: Equal Weight (Specific), % IACS 87
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.4
Stiffness to Weight: Bending, points 13
19
Strength to Weight: Axial, points 4.9 to 8.9
12 to 21
Strength to Weight: Bending, points 6.9 to 10
14 to 19
Thermal Diffusivity, mm2/s 170
15
Thermal Shock Resistance, points 9.5 to 17
12 to 21

Alloy Composition

Copper (Cu), % 0
63 to 67
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
7.0 to 9.0
Silver (Ag), % 99.9 to 100
0
Zinc (Zn), % 0
20.2 to 28.5
Residuals, % 0
0 to 0.5