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Full-Hard 60-Palladium 40-Silver Alloy

Full-hard 60Pd-40Ag alloy is 60Pd-40Ag alloy in the full-hard temper. It has the second highest strength compared to the other variants of 60Pd-40Ag alloy. The graph bars on the material properties cards below compare full-hard 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 %

Knoop Hardness


Poisson's Ratio


Shear Modulus

37 GPa 5.3 x 106 psi

Shear Strength

350 MPa 51 x 103 psi

Tensile Strength: Ultimate (UTS)

620 MPa 90 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

15 points

Strength to Weight: Bending

14 points

Thermal Diffusivity

11 mm2/s

Thermal Shock Resistance

30 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

Further Reading

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