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This article provides a discussion on the two basic steps of the batch hot dip galvanizing process: surface preparation and galvanizing. It describes the factors affecting coating thickness and coating structure. The mechanical properties of the coating and steel substrate are also discussed. The article also provides information on the various factors that should be considered before galvanizing a material. It examines the performances of galvanized coatings in corrosion service. The joining of galvanized structural members by bolting and welding is also discussed. The article describes the synergistic effects of galvanized and painted systems. It explains the applications of hot dip galvanized steel. The article concludes with information on pertinent galvanizing specifications under the authority of the American Society for Testing and Materials.

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Thomas J. Langill, Batch Process Hot Dip Galvanizing, Corrosion: Fundamentals, Testing, and Protection, Vol 13A, ASM Handbook, Edited By Stephen D. Cramer, Bernard S. Covino, Jr., ASM International, 2003, p 794–802,

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