Nickel plated zinc (Ni-Zn) hydraulic fittings are rapidly replacing traditional trivalent chromium white zinc fittings due totheir advantages. Compared to traditional white zinc fitting, Ni-Zn fittings have superior corrosion resistance, superior salt spray resistance and superior hardness. This makes them more capable of withstanding extreme temperatures and more resistant to damage caused by abrasion and chemical environments. Additionally, they have improved electrical conductivity, which makes them especially suitable for electronic hydraulic connectors. Finally, Ni-Zn fittings are much more environmentally friendly due to the fact that they contain no volatile organic compounds, unlike traditional white zinc fittings.