7306.69.50.00 - Of iron or nonalloy steel

This HTS category, 7306.69.50.00, specifically classifies welded tubes, pipes, and hollow profiles made from iron or nonalloy steel that possess a noncircular cross-section and a wall thickness less than 4 mm. The defining characteristics for inclusion here are the material composition (iron or nonalloy steel), the manufacturing method (welded), the shape of the cross-section (not round, e.g., square, rectangular, oval), and the specific wall thickness. These products are distinct from those made of alloy steel.

It is crucial to differentiate this classification from its sibling, 7306.69.70, which pertains to articles of alloy steel. While both fall under the broader category of welded, noncircular cross-section tubes, pipes, and hollow profiles with a wall thickness under 4 mm, the presence of alloying elements in the steel dictates the classification. Therefore, goods classified under 7306.69.50.00 must be composed of iron or steel that does not meet the criteria for alloy steel as defined by HTS or other relevant standards.

As this is a terminal classification (leaf node), there are no further subcategories to introduce. Classification decisions within this specific code will rely on the accurate assessment of the material composition as iron or nonalloy steel, the confirmed welded construction, the noncircular geometry, and the wall thickness being less than 4 mm. Common applications for such articles might include structural components in construction, framing for various equipment, or specialized conduits where a noncircular shape is functionally advantageous.