Silver Nickel

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Scope

This information refers to silver nickel wires, profiles and contact tips manufactured by blending of silver and nickel powder, compacting,sintering, extruding and drawing or rolling to final dimension.

DESIGNATION OF STANDARD COMPOSITIONS

the Ni content of the material is designated in weight percentage.
Standard gradations are 10, 15, 20%.

Applications

  • switches for domestic applications, main switches
  • switches for domestic application, auxiliary switches
  • contactors of switching currents upto 100A
  • miniature circuit breakers, circuit breakers (asymmetrical combination with AgC)
  • power line relays, automotive relays

CHARACTERISTICS

  • reliable anti-welding properties for switching currents upto 100A
  • low contact resistance (nearly constant throughout the life time)
  • low arc erosion for switching current upto 100A
  • good arc migration and arc extinguishing properties
  • good formability, can be welded directly

MICROSTRUCTURE

The Ni particles are deformed along the direction of extrusioii into fibres
AgNi10
Longitudinal Sectional (parallel to the diretion of extrusion)
AgNi10
Cross Section
AgNi20
Cross Section

Physical Properties

Material AgNi10 AgNi15 AgNi20
Density [g/cm3] 10.3 10.2 10.1
Electrical Conductivity [m/(Ω.mm2)] 54 48 46
Hardness Soft [HV1] 50 55 60
Tensile Strenght Soft[Mpa] 240 260 270
Elongation [%] 38 34 32
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