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

7304.29.31.10 - Having a wall thickness less than 12.7 mm 🖩

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 Duty28%
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 classification, 7304.29.31.10, specifically identifies seamless tubes and pipes made of iron or steel that are intended for use in drilling for oil or gas. Within this subcategory, it further narrows down to casing, which is a type of pipe used to line oil and gas wells. The defining characteristic for this specific code is that the casing is constructed from "other alloy steel" (not specified by specific alloying elements at this level) and is threaded or coupled for connection.

The crucial differentiating factor for this category is its specified wall thickness. HTS 7304.29.31.10 covers casing where the wall thickness is **less than 12.7 mm**. This is in direct contrast to its sibling category, 7304.29.31.20, which encompasses casing of the same material and purpose but with a wall thickness of **12.7 mm or more**. Both categories share the criteria of being seamless, for oil and gas drilling, of other alloy steel, threaded or coupled, and having an outside diameter less than 215.9 mm, making wall thickness the sole determinant for distinguishing between them.

As this is a leaf node in the HTS classification, there are no further subdivisions. Therefore, the focus for classification under 7304.29.31.10 rests entirely on verifying that the article meets all preceding criteria: seamless construction, use in oil or gas drilling, being casing of other alloy steel, threaded or coupled, having an outside diameter less than 215.9 mm, and crucially, possessing a wall thickness strictly below 12.7 mm.

Frequently Asked Questions

›What is HTS code 7304.29.31.10?
HTS code 7304.29.31.10 covers Having a wall thickness less than 12.7 mm under the US Harmonized Tariff Schedule. It falls under Chapter 73: Articles of iron or steel.
›What products are classified under 7304.29.31.10?
This classification covers Having a wall thickness less than 12.7 mm. It is a subcategory of Having an outside diameter less than 215.9 mm:.
›What is the import duty rate for 7304.29.31.10?
The general rate of duty for HTS 7304.29.31.10 is Free. The Column 2 rate is 28%.
›What unit of quantity is used for 7304.29.31.10?
Imports under HTS 7304.29.31.10 are measured in kg.

Stay Updated

Join our newsletter to get all updates of the harmonized Tariff Schedule.