About Electroless Nickel
Electroless nickel plating stands out for its uniform coating, achieved without the need for electrical current, unlike electrolytic deposition methods (like chromium or nickel). This process ensures that blind holes, threads, channels, recesses, and internal areas receive the same amount of plating as sharp corners, edges, and flat surfaces. The plating thickness can often be maintained to a tolerance of less than 2 microns. While electroless nickel deposits can be machined, often machining to size is unnecessary. In many applications, electroless nickel serves as an effective substitute for hard chromium.
Hardness & Wear of Electroless Nickel
Two of the most important properties for many applications are hardness and wear-resistance. The as-plated hardness of electroless nickel is 45-49 Rc (HV450-500) and can be heat treated to 66-70 Rc (HV865-1050). Its excellent wear resistance makes it a suitable replacement for high-alloy materials and hard chrome in many applications.
Corrosion Resistance of Electroless Nickel
Electroless nickel acts as a barrier coating, protecting substrates by sealing them from corrosive environments. It exhibits outstanding corrosion resistance against ammonia, seawater, brine, organic acids, and reducing inorganic acids. This makes electroless nickel ideal for use in the food, chemical, and oil industries, among others.
Electroless Nickel Standard
- MIL-C-26074: Class 1, 2, 3, and 4
- MIL-DTL-32119
- SAE AHS-C-2404
Electroless Nickel Capabilities
CMT offers high phosphorus electroless nickel plating with two processing tanks, each measuring 28 in. x 42 in. x 36 in., ensuring we can handle a wide range of parts and components for your specific needs.
