Quarter-Hard 80-Silver 20-Cadmium-Oxide Alloy
Quarter-hard 80-silver 20-cadmium-oxide is 80-silver 20-cadmium-oxide in the quarter-hard temper. The graph bars on the material properties cards below compare quarter-hard 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 %
Shear Strength
220 MPa 32 x 103 psi
Tensile Strength: Ultimate (UTS)
390 MPa 56 x 103 psi
Other Material Properties
Density
9.9 g/cm3 620 lb/ft3
Electrical Conductivity: Equal Volume
70 % IACS
Electrical Conductivity: Equal Weight (Specific)
64 % IACS
Common Calculations
Strength to Weight: Axial
11 points
Strength to Weight: Bending
12 points
Followup Questions
Further Reading
ASTM B781: Standard Guide for Silver-Cadmium Oxide Contact Material