7216.33.00 - H sections

This HTS category, 7216.33.00, specifically covers H sections of iron or nonalloy steel. These are structural steel profiles characterized by their "H" shape, comprising a web connecting two flanges. The classification applies to H sections that have undergone primary working processes such as hot-rolling, hot-drawing, or extrusion, and are of a height measuring 80 millimeters or more.

Distinguishing these H sections from their siblings, U sections (7216.31.00.00) and I sections (7216.32.00.00), is primarily based on their distinct cross-sectional geometry. While all fall under angles, shapes, and sections, the H section possesses a symmetrical profile with parallel inner and outer faces on both the web and flanges, differing from the U's open channel and the I's tapered flanges.

Within this category, further subclassification is provided to refine the classification based on specific physical attributes. Subcategories exist to differentiate H sections by their weight per unit length and web depth, indicated by 7216.33.00.30, 7216.33.00.60, and 7216.33.00.90. These distinctions are crucial for accurate inventory management, structural application suitability, and potential import duty calculations.