Zinc-Nickel

Information on zinc-nickel alloy coatings

Zinc-nickel alloys are in demand due to increasing requirements with regard to corrosion protection against, for example, temperature, road salt and climatic stresses, particularly in the automotive industry. Another important reason is the increased use of aluminum in the automotive sector. Here, zinc-nickel coatings on iron and steel alloys offer the advantage that no contact corrosion occurs when they are bonded to aluminum.

The alloys used today contain 12-15% nickel in the alloy layer and provide the multiple corrosion protection of simple zinc coatings.

Additional sealants or TopCoats are used to adjust further surface properties, such as lubrication function or adjustment of defined coefficients of friction and further improvement of corrosion protection.

High-tech corrosion protection proven over many years, especially with the new chromium VI-free coatings in transparent silver or black optics
Very high corrosion resistance even at temperature loads up to 150°.
No contact corrosion when installed with aluminum
suitable for mass-produced parts (barrels) and rack parts

With these positive features mentioned above, zinc-nickel coatings have gained acceptance among all German automotive manufacturers.

Areas of application

Mounting and piping systems in the engine compartment
Turned parts for brake and magnet systems
Ball studs and actuating rods in the chassis area
Housings and small parts for door locks and hood locks
Operating levers in the shift and belt area
Screws and standard parts