SPI ZINC-NICKEL PLATING – min lot $250

Sheffields SPI Zinc Nickel Plating:

SPI’s Zinc Nickel offers exceptional corrosion protection when used with our trivalent chromates which are offered in clear or black. It is built to a nickel content of 12-18%. The primary industries served are the connector, aerospace, automotive, oil and gas along with many commercial manufacturing operations.

What are the benefits of SPI’s Zinc Nickel plating?

  • SPI’s Zinc-Nickel is environmentally friendly alternative for Cadmium plating.
  • ROHS compliant trivalent passivation (Chrome 6 Free). Clear only.
  • High thermal resistance (up to 200˚C) makes it suitable for high temperature uses.
  • Provides Superior Corrosion Resistance – protects the base metal.
  • Around four times the hardness and therefore wear resistance of standard Zinc plating.
  • SPI’s Zinc-Nickel is offered in Clear and Black finishes.
  • High ductility.
  • Excellent coverage for complicated part geometries.

Zinc Nickel Specifications

  • ASTM B841-99
  • AMS 2417
  • Can Meet Most Internal OEM Specifications

Zinc Nickel Alloy Plater per AMS 2417 Rev J (rev date 9.20.2013)

Classifications:

  • Type 1 – as plated without supplementary chromate treatment
  • Type 2 – as plated with supplementary chromate treatment
  • Type 3 – as plated with supplementary phosphate treatment
  • Grade A – Hexavalent chromate used for type 2
  • Grade B – Trivalent chromate used for type 2

When type/grade not specified, use Type 2, Grade A

Technical Requirements:
1. Corrosion Resistance

  • Type 1 – Parts plated to .0004-.0007” shall show no evidence of red corrosion to base material metal after exposure to 500 hours of salt spray per ASTM B 117 (3.4.4.1 and 4.3.3.2)
  • Type 2 Grade A – Parts plated to .0004 – .0007” shall show no white corrosion after 96 hours and no evidence of red corrosion after 500 hours of salt spray per ASTM B 117 (3.4.4.2 and 4.3.3.2)
  • Type 2 Grade B – Parts plated to .0004-.0007” shall not show evidence of white corrosion after 96 hours and no evidence of red corrosion after 500 hours of salt spray per ASTM B 117 (3.4.4.4 and 4.3.3.2)
  • Type 3 – no salt spray requirement

2. Composition

  • 6-20% (SPI Zinc Nickel 12-18%) nickel and the balance of zinc. Composition testing for types 2 and 3 apply prior to application of conversion coating.

3. Hydrogen Embrittlement

  • Process after baking shall not cause hydrogen embrittlement in steel parts 36 HRC of higher (3.4.5 and 4.3.3.3).

For More SPI Zinc-Nickel Plating Information:

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