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This specification covers requirements for steel reinforcing bars, with protective zinc or zinc-alloy coatings applied by the continuous hot-dip process. Continuous hot-dip galvanizing refers to the process of uninterrupted passage of long lengths of steel products through a molten bath of zinc or zinc-alloy. To control alloy formation and promote adhesion of the zinc or zinc-alloy coating with the steel base metal, the molten coating metal composition typically contains a percentage of aluminum ranging from 0.05 to 0.25. This aluminum is purposely supplied to the molten coating bath, either as a specified ingredient in the zinc spelter or by the addition of a master alloy containing aluminum...