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Quarter-Hard 86.5-Silver 13.5-Cadmium-Oxide Alloy

Quarter-hard 86.5-silver 13.5-cadmium-oxide is 86.5-silver 13.5-cadmium-oxide in the quarter-hard temper. The graph bars on the material properties cards below compare quarter-hard 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 %

Shear Strength

210 MPa 30 x 103 psi

Tensile Strength: Ultimate (UTS)

360 MPa 52 x 103 psi

Other Material Properties

Density

10 g/cm3 630 lb/ft3

Electrical Conductivity: Equal Volume

78 % IACS

Electrical Conductivity: Equal Weight (Specific)

70 % IACS

Common Calculations

Strength to Weight: Axial

9.9 points

Strength to Weight: Bending

11 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