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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


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


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

Silver (Ag)Ag 84 to 86
Nickel (Ni)Ni 13.8 to 16
Residualsres. 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