What is electroless nickel plating?
Electroless nickel plating is the process by which nickel or a nickel alloy is deposited onto a component. It is carried out without the use of an externally applied current, unlike electroplating. The nickel is deposited onto the component from the aqueous solution created by the chemical reaction.
What are the advantages of electroless nickel plating?
Corrosion resistance and corrosion protection
One of the most common reasons for the use of electroless nickel coatings in functional applications is its excellent corrosion resistance. In the very corrosive conditions encountered in drilling and producing oil wells, for example, electroless nickel has the ability to withstand the combination of corrosive chemicals and abrasion.
With the appropriate heat treatment, electroless nickel plating can be hardened up to 950vhn. This makes it ideal for areas exposed to friction and wear.
A great feature of electroless nickel plating is its hardness. Hardness values for electroless nickel deposits are in the range of 450-750 VHN, depending on the phosphorous content of the deposit.
Electroless nickel plating has natural self lubricating properties, which eliminates the need for liquid lubricants on components.
Solderability and bondability
Electroless nickel-phosphorus alloys are easily soldered with a highly active acid flux.
Uniformity of deposit regardless of geometries
Electroless nickel plating has a completely uniform coating. It’s a perfect solution for critical high-end engineering items including defence, healthcare, automotive and aerospace. Electroless nickel can be deposited to produce a wide range of coating thicknesses, with uniformity and minimum variation from point to point.
This uniformity can be maintained in plating both large and small parts and on components that are fairly complex, with recessed areas. Electroplating of such parts, on the other hand, would produce thickness variation and possible voids in the plating when coating holes and inside diameters.
Nonmagnetic properties of high-phosphorus nickel alloy
Electroless nickel deposits containing greater than 8 percent phosphorus are considered to be essentially nonmagnetic as plated.
How long will it take for my order to be completed?
As a specialist plating company our capacity and turnaround is fast and efficient. Depending on the size and scale of the order, our standard lead time is 5 days.
Where do NiTEC deliver to?
We frequently deliver throughout the UK, Europe and the world.
Can you provide a quote based on an email?
We are able to provide customers with comprehensive quotes based on drawings and photographs that have been emailed to us. We aim to respond to enquiries within 48 hours.
How hard is electroless nickel plating?
Electroless nickel deposits have hardness values in the range of 450 – 750 VHN, depending on the phosphorus content in the deposit. Generally, the higher the phosphorus content, the lower the as deposited hardness.
Heat treatment can be used to increase the hardness of electroless nickel coatings, achieving in excess of 1000 VHN. This makes the deposit hardness comparable to that of hard chrome, with the advantage of an even coating which will not require post plating machinery.
For more information about electroless nickel plating and more great reasons to choose nickel as your plating material, visit the NiTEC website, become a fan of our Facebook page, or why not follow us on Twitter?