7302.10.10.45 - Over 30 kg per meter

This HTS category, 7302.10.10.45, specifically covers new, heat-treated rails made of iron or non-alloy steel that weigh over 30 kilograms per meter. These are substantial and robust rails designed for heavy-duty railway or tramway applications. The "heat treated" aspect indicates that these rails have undergone specific thermal processes to enhance their strength, durability, and resistance to wear and deformation under significant stress.

This subcategory is distinguished from its sibling, 7302.10.10.55 ("Other"), by the explicit weight threshold of over 30 kg per meter. While both deal with new, heat-treated iron or non-alloy steel rails, the ".45" designation precisely targets the heavier, more robust sections typically used in main lines or high-traffic areas where superior structural integrity is paramount. The ".55" category would encompass new, heat-treated rails that do not meet this specific weight requirement.

As this is a leaf node in the HTS structure, there are no further subcategories. Therefore, the focus is on ensuring accurate classification based on the material (iron or non-alloy steel), condition (new), treatment (heat treated), and weight (over 30 kg per meter) to ensure these specific heavy-duty rails are correctly identified and dutied.