Electroless nickel plating reduces the metal to the surface of the piece through a chemical reaction. The resulting coating is very precise and even, regardless of the shape of the piece. This property, together with its high hardness and wear resistance, has made it a very general treatment for many demanding applications. Chemical nickel plating is well suited for aluminium, brass and steel. Corrosion resistance is also good with coatings over 25µm. Up to 1000h (NSS) can be achieved with high-phosphorus nickel.
Pinnoitus Helin Oy’s plating solutions for electroless nickel:
- Medium phosphorus (phosphorus content in the coating 6-9 %)
- Highly phosphorous (phosphorus content in the coating 10-13%)
- Complies with RoHS Directive
Maximum piece dimensions: 2700mm x 900 mm x 250 mm - Pre-treatments: copper, aluminium and steel, and their alloys
- Coating hardness HV 0,1:
– without heat treatment: 500-600
– heat treated at 400 C: 900-1000
Electroless nickel plating and standards
- Autocatalytic (electroless) nickel-phosphorus alloy coatings – Specification and test methods (ISO 4527:2003)
Hard chrome
Hard chrome gives a hard and wear-resistant surface to the piece. Hard chrome plating can be replaced by electroless nickel plating in many applications. Electroless nickel plating can replace hard chrome plating and is a more environmentally friendly treatment.
Contact us to find out more about electroless nickel plating or replacing hard chrome with electroless nickel plating.