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Rulon Bearings
NAECO® ELKONIUM® 40 pure palladium
Categories: Metal; Nonferrous Metal; Precious Metal; Palladium Alloy; Pure Element

Material Notes: Palladium belongs to the platinum group of metals and like platinum is highly resistant to atmospheric corrosion; however, it begins to tarnish at temperatures above 400°C. It has a high melting point (1552(C) and, like platinum, resists arc formation. Its low electrical conductivity (16% IACS) limits its application to low current circuits. It costs much less than platinum, and is used as a lower cost alternative. Economics normally dictate that it be supplied as a composite contact with a thin contact metal facing silver brazed to a nickel-plated steel rivet, screw, or projection weld button backing.

ELKONIUM® 40 is CMW's trademark for commercially pure palladium (9.90 minimum purity). Its good corrosion resistance and low hardness makes it a desirable contact for low current applications where forces are relatively low and reliability of making circuit is important. It is used in aircraft relays at currents under 1 ampere, in telephone relays and in instruments. It is often chosen for applications where contacts area open for long periods of time.

Information provided by NAECO, LLC.

Available Properties
  • Density
  • Hardness, Rockwell 15T, annealed
  • Hardness, Rockwell 15T, cold worked
  • Tensile Strength, Ultimate, annealed
  • Tensile Strength, Ultimate, cold worked
  • Elongation at Break, cold worked
  • Elongation at Break, annealed
  • Electrical Resistivity, 16 % IACS
  • Palladium, Pd
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Ensinger PEI
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