7325 - Other cast articles of iron or steel:

This HTS category, 7325, encompasses a broad range of finished articles manufactured from iron or steel through the casting process, which are not specifically classified elsewhere within Chapter 73. This includes items like cast iron manhole covers, cast steel gears, ornamental cast iron pieces, and various industrial components that have been formed by pouring molten metal into a mold. The defining characteristic is that the article's final shape is achieved through casting, rather than fabrication, forging, or machining from solid stock.

Within the broader scope of Section XV, and specifically Chapter 73 which deals with articles of iron or steel, this category serves as a residual classification for cast items. It distinguishes itself from other categories within Chapter 73 that might cover wrought iron or steel articles (like pipes, tubes, wire, or fasteners) or those made through processes such as forging or stamping. The key differentiator is the method of manufacture: casting.

The subcategories within 7325 further refine this classification based on the specific type of cast iron used. The primary subdivision, 7325.10, addresses articles made from "nonmalleable cast iron," a material known for its hardness and brittleness. The residual "Other" subcategory would then encompass articles made from other types of cast iron, such as malleable cast iron, or cast steel, ensuring a comprehensive classification of all cast iron and steel articles not otherwise specified.