7305

Analysis

Heading 7305 of the Harmonized Tariff Schedule covers other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel. It divides into 7 six-digit subheadings and 17 eight-digit tariff lines, with 21 ten-digit statistical suffixes below them.

Every one of its 17 tariff lines is duty-free at the general rate, so classification within the heading affects statistics and Chapter 99 measures rather than the base duty.

The largest subheadings are 7305.20 (casing of a kind used in drilling for oil or gas, 4 lines), 7305.31 (longitudinally welded, 3 lines), 7305.11 (longitudinally submerged arc welded, 2 lines) and 7305.12 (other, longitudinally welded, 2 lines).

Its median rate of duty-free sits at the 38th percentile of the headings in chapter 73.

By Census's concordance, most of its statistical lines are made by Iron and Steel Mills and Ferroalloy Manufacturing (331110) and Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (331210). Those are the NAICS industries a US producer of these goods would report under.