7306.69.70 - Of alloy steel

This HTS category, 7306.69.70, specifically classifies welded tubes, pipes, and hollow profiles of iron or steel that have a noncircular cross-section, a wall thickness less than 4 mm, and are made of alloy steel. The defining characteristic here is the material composition – alloy steel, which denotes steel with added elements beyond iron and carbon to enhance its properties such as strength, hardness, and corrosion resistance.

It is crucial to distinguish this category from its sibling, 7306.69.50.00, which covers similar noncircular, welded profiles but is made of iron or nonalloy steel. Therefore, the presence of alloying elements in the steel is the primary differentiator for classification under 7306.69.70.

Within this category, further subdivisions exist to refine the classification based on the specific type of alloy steel. Subcategory 7306.69.70.30 addresses products made of stainless steel, a common and distinct type of alloy steel known for its chromium content. The remaining products within the scope of 7306.69.70 are captured under the residual category 7306.69.70.60, encompassing other types of alloy steel not specifically enumerated in the preceding subcategories.