Zinc Nickel – Coming Soon

Zinc-Nickel Plating

Plated Zinc-Nickel is a durable, highly corrosion resistant coating that was developed in part as a replacement for Cadmium Plating. It is used in the protection of steel, cast iron, copper, brass and bronze. Zinc-Nickel is recognized as an environmentally safe alternative to cadmium electroplating. In specific applications, Zinc-Nickel demonstrates equivalent, or better, corrosion properties when compared to cadmium. Zinc-Nickel is normally applied for corrosion protection purposes, and functions as a “sacrificial coating”, corroding before the base material. Zinc-Nickel can also replace cadmium in galvanic interaction applications where the coating is intended to minimize corrosion caused by the interaction of dissimilar metals.

Specifications

AMS 2417 Plating, Zinc-Nickel Alloy (SAE International)

• Type 1 – As plated without supplementary treatment, service temperature 500 Degrees F(260 C) max
• Type 2 – As plated with supplementary chromate treatment
  • Grade A – Hexavalent chromate treatment, service temperature 250 F max
  • Grade B – Trivalent chromate treatment, service temperature 375 F max
• Type 3 – As plated with supplementary phosphate treatment (Prime & Paint Base), Service temperature 375 F max

• NOTES:  
  • Unless a type is specified, Type 2 shall be supplied
  • For Type 2 Plating, if no grade is specified, Grade A shall be supplied

ASTM B841 Electrodeposited Coatings of Zinc Nickel Alloy Deposits

• Class 1 – Deposit having a minimum of 5 and maximum of 12 mass % Nickel, with balance as zinc
  • Type A – Colorless (blue bright) conversion coating
  • Type B – Yellow iridescent conversion coating
  • Type C – Bronze conversion coating
  • Type D – Black conversion coating
  • Type E – Any of the above plus an organic topcoat
• Thickness Grades
  • Grade 5 – Minimum 5 microns thick
  • Grade 8 – Minimum 8 microns thick
  • Grade 10 – Minimum 10 microns thick

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