Chrome plating is applied for wear resistance, reconditioning worn or undersized parts, and such incidental corrosion protection as the specified thickness of the deposit may afford. This standard provides guidance on the procedures and processes for low hydrogen embrittlement chromium electrodeposition on high strength steel components; however, the processes described within this document, may also be used to deposit chromium on low strength steels, stainless steels, and nickel surfaces. Where corrosion protection is desired, an undercoat of nickel 0.025 to 0.050 millimeters (0.001 to 0.002 inches) thickness is recommended. When not specified, use the preferred Class 3 plating (1.3.1).