Engineering Partnerships That Outperform

Electroless Nickel

Electroless Nickel Plating

US Chrome offers “Mid-Phos” (5% to 8%) and “High-Phos” (10% to 12%) electroless nickel plating services.

Electroless Nickel plating (EN), also known as autocatalytic nickel, is a micro crystalline to amorphous, hardenable nickel-phosphorous alloy coating. It offers a good barrier coating corrosion resistance. It is generally applied to a thickness range of 25 to 150 microns (0.0001” to 0.0015”) typically does not require further surface finishing, machining, or grinding after plating.

During the plating process, the autocatalytic reaction between the nickel and the reducing agent in the plating bath deposits nickel onto metal substrates without the use of anodes and electrical current, hence the name “electroless”. Since no high or low current densities exist, a very uniform thickness of deposits over irregular shapes can be achieved.

Features & Benefits of Electroless Nickel Plating

  • Excellent corrosion resistance
  • Deposits nickel uniformly
  • Heat resistant up to 540°C (1000°F)
  • Good durability
  • Superior bond strength to base metal

Electroless nickel can be heat treated at relatively low temperatures (400° to 450°C) to achieve higher hardness (up to 1000 HVN); however, corrosion resistance is reduced.

electroless nickel plated part

Think U.S. Chrome

We have been helping engineers find solutions to surface coating challenges for over 80 years.

What are the advantages of electroless nickel?

Electroless nickel has many functional advantages when used on applications. It has excellent corrosion resistance and is able to withstand 48-100 hours of salt spray testing (ASTM B-117). When the nickel is deposited, it is deposited uniformly, no matter the part geometry, due to no current density distribution inherent in electrolytic processes. US Chrome also offers a proprietary plating method for applying electroless nickel to aluminum alloys.

What specifications does US Chrome electroless nickel plate to?

We plate to many different specifications including, but not limited to, AMS2433, ASTM B733, AMS2404, MIL-C-26074. To see more of our specifications, click here.

What materials can electroless nickel be plated on?

Electroless nickel can be applied to a variety of substrates. While we plate it to many materials, some of the more common include aluminum, steel, bronze, copper, titanium, and plastic.

What applications use electroless nickel?

For many applications, it is applied as a barrier coating under hard chrome to provide the ultimate in corrosion and wear resistance. Typical applications include plastic and glass molds, bearings, gears, medical parts, and aerospace components.

Where does U.S. Chrome offer electroless nickel?

U.S. Chrome offers electroless nickel plating at our IllinoisOhio, and Connecticut locations. Each facility is strategically located for fast and efficient delivery to anywhere in America and across the globe.

We're ready to work with you.

We’re confident US Chrome will be your best option for your electroless nickel plating applications because of our engineering approach, exceptional customer service, and regional locations. Contact us now with your questions or coating challenges.
We’ll help you find the right answer.

We serve cookies on this site to analyze traffic, remember your preferences, and optimize performance.