Standard specifications for zinz coatings (hot dip galvanized) on iron and steel products.
What is it? What does it consist of?
This specification covers the requirements for zinc coatings (galvanization) by the hot-dip process on iron and steel products made of rolled and forged sections, castings, plates, bars and straps.
This specification covers both fabricated and unfabricated products, for example, assembled steel products, structural steel fabrications, large tubes already bent or welded prior to galvanizing, and wire work fabricated from uncoated steel wire. This specification also covers steel forgings and iron castings incorporated into parts manufactured before galvanizing or that are too large to be centrifuged (or otherwise manipulated to remove excess metal from the galvanizing bath).
This specification covers those products previously mentioned in Specifications A 123-78 and A 386-78.
This specification does not apply to galvanized wire, pipe, tube, or sheet steel in specialized or continuous lines or to steel less than 22 gauge (0.0299 in.) [0.76 m] thick.