80-Silver 20-Cadmium-Oxide Electrical Contact Alloy
80-silver 20-cadmium-oxide is a precious metal alloy formulated for use in electrical contacts. It has the lowest density among the precious metal electrical contact alloys in the database.
The properties of 80-silver 20-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 80-silver 20-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
1.1 to 15 %
Shear Strength
190 to 220 MPa 28 to 32 x 103 psi
Tensile Strength: Ultimate (UTS)
310 to 440 MPa 45 to 64 x 103 psi
Other Material Properties
Density
9.9 g/cm3 620 lb/ft3
Electrical Conductivity: Equal Volume
63 to 77 % IACS
Electrical Conductivity: Equal Weight (Specific)
57 to 70 % IACS
Common Calculations
Strength to Weight: Axial
8.8 to 12 points
Strength to Weight: Bending
10 to 13 points
Followup Questions
Further Reading
ASTM B781: Standard Guide for Silver-Cadmium Oxide Contact Material