GMNA GM6280M PDF

This specification covers the basic requirements for barrel or rack electrodeposited zinc alloy plating over a ferrous substrate. Four (4) alloy platings are covered by this specification: zinc-iron, zinc-cobalt, zinc-nickel, and tin-zinc. The alloy platings are especially suitable for small to medium ferrous parts such as castings, fasteners, stampings, clips and other ferrous parts where levels of corrosion protection exceeding pure zinc are required.

Table 1 lists the alloy finishes covered by this specification.

Note 1: This finish is not recommended for applications where white corrosion is a cosmetic specification.