Palladium-nickel alloy plating

Overview
Mitsuya has developed a palladium-nickel alloy plating designed to address limitations of pure palladium plating. Compared with pure palladium, the alloy improves hardness (approx. Hv450), wear resistance and, depending on nickel content, corrosion resistance. The alloy reduces pinholes and lowers risk of hydrogen embrittlement. It is used as an alternative to gold plating on contact point parts and in components requiring sliding and insertion resistance. Mitsuya's palladium-nickel alloy can be plated by reel-to-reel, barrel and rack processes.

Functional property

• Abrasion & wear resistance
• Corrosion resistance
• High hardness (approx. Hv450)

Industry employed

• High-precision connectors

Availability details
mass production: yes
process type: R,H
under plating: Ni
prototype: yes
experimental trial: yes
regular chemical stock: yes

Technical specifications

• Product: Palladium‑nickel alloy plating developed to compensate for pure palladium weaknesses
• Improved corrosion resistance versus pure palladium depending on Ni ratio
• Reduced pinholes compared with pure palladium plating
• Lower likelihood of hydrogen embrittlement
• Hardness: approximately Hv450 (higher than pure palladium)
• Common applications: contact point parts as an alternative to gold plating; components requiring sliding and insertion resistance
• Usable plating processes: reel-to-reel (H), rack (R), barrel (B) and mesh basket (M) where applicable
• Recommended under plating: Nickel (Ni)
• Mass production: available
• Prototype and experimental trials: available
• Regular chemical stock: yes