7306.40.10 - Having a wall thickness of less than 1.65 mm

This HTS classification, 7306.40.10, specifically covers welded tubes, pipes, and hollow profiles made of iron or steel that have a circular cross-section and are manufactured from stainless steel. The defining characteristic for this subcategory is a wall thickness measuring less than 1.65 mm. These items are typically used in applications where a thinner-walled, corrosion-resistant tubular product is required.

Distinguishing this category from its sibling, 7306.40.50, is solely based on the wall thickness. While both cover welded, circular, stainless steel tubes and pipes, 7306.40.50 applies to those with a wall thickness of 1.65 mm or greater. Therefore, the critical factor in classifying a product under 7306.40.10 versus its sibling is the precise measurement of its wall thickness.

Under this classification, further subdivisions exist to refine the categorization. The primary distinction among the subcategories relates to the nickel content. Goods falling into this 7306.40.10 category are further broken down into those "Containing more than 0.5 percent by weight of nickel" and "Other," which encompasses all remaining stainless steel tubes and pipes with a wall thickness less than 1.65 mm that do not meet the nickel threshold. This detailed breakdown allows for more precise trade statistics and potential duty rate application based on material composition.