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.
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.
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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.
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.
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.
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.
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