85-Silver 15-Nickel Electrical Contact Alloy
85-silver 15-nickel is a precious metal alloy formulated for use in electrical contacts. It has a moderately high electrical conductivity among the precious metal electrical contact alloys in the database.
The properties of 85-silver 15-nickel include four common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 85-silver 15-nickel to: precious metal electrical contact alloys (top), all alloys in the same category (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
88 GPa 13 x 106 psi
Poisson's Ratio
0.36
Shear Modulus
32 GPa 4.7 x 106 psi
Tensile Strength: Ultimate (UTS)
260 to 470 MPa 38 to 68 x 103 psi
Thermal Properties
Latent Heat of Fusion
140 J/g
Melting Completion (Liquidus)
870 °C 1590 °F
Melting Onset (Solidus)
960 °C 1760 °F
Specific Heat Capacity
270 J/kg-K 0.064 BTU/lb-°F
Thermal Expansion
18 µm/m-K
Other Material Properties
Density
10 g/cm3 640 lb/ft3
Electrical Conductivity: Equal Volume
86 % IACS
Electrical Conductivity: Equal Weight (Specific)
75 % IACS
Common Calculations
Stiffness to Weight: Axial
4.8 points
Stiffness to Weight: Bending
14 points
Strength to Weight: Axial
7.1 to 13 points
Strength to Weight: Bending
8.9 to 13 points
Thermal Shock Resistance
12 to 21 points
Alloy Composition
Ag | 84 to 86 | |
Ni | 13.8 to 16 | |
res. | 0 to 0.2 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B693: Standard Specification for Silver-Nickel Electrical Contact Materials