💾 Data Updated: 2025 HTS Revision 30 • Last updated: November 24, 2025

7306.30.50.28 - Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit

Details

FieldValue
Unit of Quantitykg
General Rate of DutyFree
Special Rate of DutyN/A
Column 2 Rate of Duty5.5%
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category specifically covers welded tubes, pipes, and hollow profiles of iron or non-alloy steel that have a circular cross-section, a wall thickness of 1.65 mm or more, and an outside diameter not exceeding 114.3 mm. These articles are externally galvanized, meaning they have been coated with a layer of zinc for corrosion resistance.

The key distinguishing feature of this category is the external galvanization. It differs from its sibling "Imported with coupling" which would include articles where a coupling fitting is attached to the pipe. This category covers only the galvanized pipe itself, without any attached fittings.

As this is a leaf node in the HTS classification, there are no further subcategories. Classification within this code depends on meeting all the preceding criteria: being welded, of circular cross-section, made of iron or non-alloy steel, having a wall thickness of 1.65 mm or more, an outside diameter not exceeding 114.3 mm, and being externally galvanized. This ensures precise categorization for a specific type of steel conduit used in various industrial and construction applications.

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