7210.30.00 - Electrolytically plated or coated with zinc

This HTS category, 7210.30.00, encompasses flat-rolled products of iron or nonalloy steel, with a width of 600 millimeters or more, that have been electrolytically plated or coated with zinc. This means the steel has undergone an electrochemical process where a layer of zinc is deposited onto its surface. This coating serves a critical purpose in protecting the underlying steel from corrosion and rust.

Distinguishing this category from its siblings is essential. While other categories within 7210 cover steel coated with tin (7210.11.00 and 7210.12.00), lead (7210.20.00.00), or aluminum, this specific classification is solely for products where the coating is applied via electrolysis and consists of zinc. It excludes steel coated with chromium oxides or chromium and chromium oxides (7210.50.00), as well as those coated with aluminum.

Within this electrolytically zinc-coated category, further distinctions are made based on the type of steel. The subcategories differentiate between products made of "high-strength steel" (7210.30.00.30) and "other" steels (7210.30.00.60). This allows for more precise classification, recognizing that different steel grades may have distinct applications and properties, impacting their tariff treatment.