7315.82.30.00 - Over 10 mm in diameter

This HTS category, 7315.82.30.00, specifically classifies welded link chain made of iron or steel, where the individual links have a diameter exceeding 10 mm. These are robust chains designed for heavy-duty applications such as towing, anchoring, lifting, or industrial machinery where significant tensile strength and durability are paramount. The "other, welded link" designation indicates chains formed by joining links through welding, differentiating them from cast or forged chains.

The key distinguishing factor for this category is the physical dimension of the chain links. It directly contrasts with its sibling category, 7315.82.10.00, which covers identical welded link chains but where the links are 10 mm in diameter or less. Therefore, the precise measurement of the link's cross-sectional diameter is the sole criterion for differentiating between these two closely related classifications.

As a leaf node within the HTS, there are no further subdivisions under 7315.82.30.00. Once a welded link chain of iron or steel is determined to be made of alloy steel and has individual links with a diameter over 10 mm, it is definitively classified here. Examples within this category would include large anchor chains for vessels, heavy-duty industrial conveyor chains, or robust logging chains where the substantial link diameter signifies their intended heavy-duty purpose.