Platings > Hard Gold plating

Hard Gold plating

sample of Hard Gold plating

Hard gold plating contains a small amount of hardener.
Our hard gold plating has a cobalt content of 1 to 3 wt% in order to increase the hardness compared to bright gold plating, and has a high hardness of Hv190 to 250.
Therefore, contact resistance of the hard gold plating deposit is higher than that of pure gold plating or bright gold plating.
Even with high-hardness, the hard gold plating of Mitsuya is superior in wear resistance, electric conductivity, soldering characteristics and low contact resistance.

Hard gold plating is required particularly in the following components:
・The sliding parts that require conductivity and hardness.
・The slip ring that require conductivity and sliding property.

Contact resistance of Bright gold and Hard gold are almost the same

Contact resistance of Bright gold and Hard gold are almost the same

Functional property

  • Abrasion & Wear Resistant
  • Low Contact Resistant
  • High Conductive

Availability details

mass production yes
process type B,R,M
under plating Ni
prototype yes
experimental trial yes
regular chemical stock yes
B:barrelR:rackM:mesh basketH:reel to reel
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