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60-Palladium 40-Silver Electrical Contact Alloy

60Pd-40Ag alloy is a precious metal alloy formulated for use in electrical contacts. It has the lowest electrical conductivity among the precious metal electrical contact alloys in the database.

The properties of 60Pd-40Ag alloy include six 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 60Pd-40Ag alloy 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

100 GPa 15 x 106 psi

Elongation at Break

1.1 to 28 %

Knoop Hardness

110 to 220

Poisson's Ratio


Shear Modulus

37 GPa 5.3 x 106 psi

Shear Strength

220 to 350 MPa 32 to 51 x 103 psi

Tensile Strength: Ultimate (UTS)

340 to 720 MPa 50 to 100 x 103 psi

Thermal Properties

Latent Heat of Fusion

140 J/g

Melting Completion (Liquidus)

1360 °C 2480 °F

Melting Onset (Solidus)

1310 °C 2390 °F

Specific Heat Capacity

240 J/kg-K 0.057 BTU/lb-°F

Thermal Conductivity

29 W/m-K 17 BTU/h-ft-°F

Thermal Expansion

15 µm/m-K

Other Material Properties


11 g/cm3 710 lb/ft3

Electrical Conductivity: Equal Volume

4.1 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.2 % IACS

Common Calculations

Stiffness to Weight: Axial

4.9 points

Stiffness to Weight: Bending

14 points

Strength to Weight: Axial

8.4 to 18 points

Strength to Weight: Bending

9.6 to 16 points

Thermal Diffusivity

11 mm2/s

Thermal Shock Resistance

16 to 34 points

Alloy Composition

Palladium (Pd)Pd 59.5 to 60.9
Silver (Ag)Ag 39.1 to 40.5
Copper (Cu)Cu 0 to 0.1
Residualsres. 0 to 0.3

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM B731: Standard Specification for 60% Palladium-40% Silver Electrical Contact Material