7306.40.50.64 - Other

This HTS category, 7306.40.50.64, classifies welded, circular cross-section tubes, pipes, and hollow profiles of stainless steel. To fall within this designation, the articles must be of stainless steel with a wall thickness of 1.65 mm or more, and their outside diameter must not exceed 114.3 mm. Crucially, these products must contain more than 0.5 percent but less than 24 percent by weight of nickel, and importantly, *not* meet the specific alloying criteria of the sibling category.

The primary differentiator for this classification lies in the nickel content. This category specifically targets stainless steel articles that contain a significant amount of nickel, but not to the extent found in some other stainless steel alloys that might have different corrosion resistance or mechanical properties. The sibling category, 7306.40.50.62, differentiates itself by classifying stainless steel tubes with a specific range of molybdenum content (more than 1.5 percent but less than 5 percent by weight), which dictates different metallurgical properties and potential applications compared to the nickel-focused criteria of 7306.40.50.64.

As this is a leaf node, there are no further subcategories to introduce. Classification at this level is definitive based on the described physical and compositional attributes of the welded stainless steel tubes, pipes, and hollow profiles. This detailed classification ensures accurate tariff application for trade in these specific types of stainless steel products.