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86.5-Silver 13.5-Cadmium-Oxide Electrical Contact Alloy

86.5-silver 13.5-cadmium-oxide is a precious metal alloy formulated for use in electrical contacts.

The properties of 86.5-silver 13.5-cadmium-oxide include three 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 86.5-silver 13.5-cadmium-oxide 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

Elongation at Break

3.4 to 16 %

Shear Strength

170 to 210 MPa 25 to 30 x 103 psi

Tensile Strength: Ultimate (UTS)

280 to 410 MPa 40 to 59 x 103 psi

Other Material Properties


10 g/cm3 630 lb/ft3

Electrical Conductivity: Equal Volume

72 to 85 % IACS

Electrical Conductivity: Equal Weight (Specific)

64 to 76 % IACS

Common Calculations

Strength to Weight: Axial

7.6 to 11 points

Strength to Weight: Bending

9.3 to 12 points

Followup Questions

Further Reading

ASTM B781: Standard Guide for Silver-Cadmium Oxide Contact Material

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015