Description / Abstract:
Zinc and zinc-alloy coated steel is used to enhance a
structure's protection against corrosion degradation. For the
purpose of this SAE Recommended Practice, a galvanized coating is
defined as a zinc or zinc-alloy metallic coating. The selection of
the optimum galvanized steel sheet product depends on many factors,
the most important being: desired corrosion protection,
formability, weldability, surface characteristics, and
paintability. The trade-offs of these product characteristics are
more complex than is the case with uncoated steel sheet
products.
Purpose
This document defines preferred product characteristics. It also
explains the various manufacturing processes, presents the
advantages and disadvantages of the resulting product
characteristics, and discusses the trade-offs between corrosion
protection properties and fabricating, assembling, and
finish-coating process.