💾 Data Updated: Latest version • Last updated: December 09, 2025

7304.51.50.15 - Of heat-resisting steel 🖩

Details

FieldValue
Unit of Quantitykg
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)N/A
Column 2 Rate of Duty35%
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS category, 7304.51.50.15, specifically classifies seamless tubes, pipes, and hollow profiles of iron or steel that are manufactured from other alloy steel, have a circular cross-section, and have undergone cold-drawing or cold-rolling. The defining characteristic for this subcategory is that the steel used in their construction possesses heat-resisting properties, making them suitable for high-temperature applications.

This classification is distinct from its sibling category, 7304.51.50.45, which covers "Other" tubes and pipes of a similar construction (seamless, circular cross-section, other alloy steel, cold-drawn/rolled) but *without* the specific "heat-resisting steel" designation. Therefore, the key differentiator is the material's inherent resistance to elevated temperatures.

As this node represents a leaf in the HTS structure, there are no further subcategories. Classification under 7304.51.50.15 is final, and goods meeting these specific criteria, including being made of heat-resisting steel and suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces, and feedwater heaters, will be classified here. Examples would include specialized tubing used in industrial furnaces or high-pressure, high-temperature steam systems.

Frequently Asked Questions

›What is HTS code 7304.51.50.15?
HTS code 7304.51.50.15 covers Of heat-resisting steel under the US Harmonized Tariff Schedule. It falls under Chapter 73: Articles of iron or steel.
›What products are classified under 7304.51.50.15?
This classification covers Of heat-resisting steel. It is a subcategory of Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters:.
›What is the import duty rate for 7304.51.50.15?
The general rate of duty for HTS 7304.51.50.15 is Free. The Column 2 rate is 35%.
›What unit of quantity is used for 7304.51.50.15?
Imports under HTS 7304.51.50.15 are measured in kg.

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