HOT DIP ZINC PLATING BATH AND ZINC-PLATED IRON PRODUCT

摘要

[PROBLEMS] To provide a hot dip zinc plating bath and a zinc-plated iron product having excellent corrosion resistance and appearance. [MEANS FOR SOLVING PROBLEMS] Disclosed is a hot dip zinc plating bath containing 0.005 to 0.2% by mass of Cu. Preferably, the plating bath further contains 0.001 to 0.1% by mass of Al. When the plating bath is a Zn-Bi-based plating bath, Bi may be contained at a proportion of 0.05 to 5.0% by mass. When the plating bath is a Zn-Pb-based plating bath , Pb may be contained at a proportion of 0.05 to 3.0% by mass. An iron product plated using the hot dip zinc plating bath has excellent appearance and corrosion resistance.