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C78200 Nickel Silver vs. ASTM B780 Alloy

C78200 nickel silver belongs to the copper alloys classification, while ASTM B780 alloy belongs to the otherwise unclassified metals. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is C78200 nickel silver and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
83
Elongation at Break, % 3.0 to 40
1.1 to 9.1
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 43
30
Shear Strength, MPa 280 to 400
200 to 340
Tensile Strength: Ultimate (UTS), MPa 370 to 630
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 190
140
Specific Heat Capacity, J/kg-K 390
270
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
70 to 76
Electrical Conductivity: Equal Weight (Specific), % IACS 12
62 to 68

Otherwise Unclassified Properties

Density, g/cm3 8.4
10

Common Calculations

Stiffness to Weight: Axial, points 7.4
4.5
Stiffness to Weight: Bending, points 19
14
Strength to Weight: Axial, points 12 to 21
9.1 to 16
Strength to Weight: Bending, points 14 to 19
11 to 15
Thermal Shock Resistance, points 12 to 21
16 to 29

Alloy Composition

Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 63 to 67
23.5 to 25.7
Iron (Fe), % 0 to 0.35
0 to 0.050
Lead (Pb), % 1.5 to 2.5
0 to 0.030
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 7.0 to 9.0
0.35 to 0.65
Silver (Ag), % 0
74 to 76
Zinc (Zn), % 20.2 to 28.5
0 to 0.060
Residuals, % 0 to 0.5
0