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Quarter-Hard 90-Silver 10-Cadmium-Oxide Alloy

Quarter-hard 90-silver 10-cadmium-oxide is 90-silver 10-cadmium-oxide in the quarter-hard temper. The graph bars on the material properties cards below compare quarter-hard 90-silver 10-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 %

Shear Strength

190 MPa 28 x 103 psi

Tensile Strength: Ultimate (UTS)

340 MPa 49 x 103 psi

Other Material Properties


10 g/cm3 640 lb/ft3

Electrical Conductivity: Equal Volume

81 % IACS

Electrical Conductivity: Equal Weight (Specific)

71 % IACS

Common Calculations

Strength to Weight: Axial

9.1 points

Strength to Weight: Bending

11 points

Followup Questions

Further Reading

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