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CMW ELKONIUM® 217 Silver Cadmium Alloy


Subcategory: Silver Alloy; Precious Metal; Nonferrous Metal

Material Notes:
The alloying of silver with cadmium produces materials with good arc extinction, good corrosion resistance and low contact resistance characteristics and provides them with good switching capability in AC circuits. They have low transfer characteristics in some DC applications. The alloying increases the strength and hardness, but substantially reduces the thermal and electrical conductivity and thus limits their current handling capability. The silver-cadmium alloy contacts are ductile materials and can be supplied in shapes and sizes similar to fine silver.

ELKONIUM® 217 alloy has good arc interruption and anti-welding characteristics and has been used in line starters, solenoid contactors, automotive starters and other power switching applications for many years. However, more recently it has been replaced with the higher conductivity silver-cadmium oxide alloys of CMW D54F, D55F, D54X and D55X.

Information provided by CMW Inc.

Available Properties
  • Density
  • Hardness, Rockwell 15T
  • Tensile Strength, Ultimate
  • Elongation at Break
  • Electrical Resistivity
Property Data

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