# United States tariff line 7304.29.20.80: Having an outside diameter exceeding 406.4 mm > In the United States tariff, line 7304.29.20.80 covers casing, tubing and drill pipe, of a kind used in drilling for oil or gas, casing, of iron or nonalloy steel, having an outside diameter exceeding 406.4 mm. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7304.29 in heading 73.04 (chapter 73). Source: https://border.bot/countries/united-states/hs-codes/7304292080 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 73](https://border.bot/countries/united-states/hs-codes/73) / [7304.29](https://border.bot/countries/united-states/hs-codes/730429) / [7304.29.20.80](https://border.bot/countries/united-states/hs-codes/7304292080) ## Key facts - Tariff line: 7304.29.20.80 - Covers: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas, casing, of iron or nonalloy steel, having an outside diameter exceeding 406.4 mm - Duty (MFN): Free - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [7304.29](https://border.bot/hs-codes/730429) ## What this line covers In the United States tariff, line 7304.29.20.80 covers casing, tubing and drill pipe, of a kind used in drilling for oil or gas, casing, of iron or nonalloy steel, having an outside diameter exceeding 406.4 mm. Its legal text is “Having an outside diameter exceeding 406.4 mm”, read under “Casing, tubing and drill pipe, of a kind used in drilling for oil or gas”, “Other”, “Casing”, “Of iron or nonalloy steel” and “Other”. ## How it is structured It falls under HS subheading 7304.29 in heading 73.04 (chapter 73). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 73: Articles of iron or steel - Heading 73.04: Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel - Subheading 7304.29: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas - Within the subheading: Other - Within the subheading: Casing - Within the subheading: Of iron or nonalloy steel - Within the subheading: Other - Line 7304.29.20.80: Having an outside diameter exceeding 406.4 mm ## Duty Goods under this line enter free of general (MFN) duty. The rate is published on 7304.29.20. ## In other countries No other national tariff on border.bot has live lines under 7304.29 yet. - [The Harmonized System text for 7304.29](https://border.bot/hs-codes/730429) ## Other lines under 7304.29 - [7304.29.10.10](https://border.bot/countries/united-states/hs-codes/7304291010) Having a wall thickness less than 12.7 mm - [7304.29.10.20](https://border.bot/countries/united-states/hs-codes/7304291020) Having a wall thickness of 12.7 mm or more - [7304.29.10.30](https://border.bot/countries/united-states/hs-codes/7304291030) Having a wall thickness less than 12.7 mm - [7304.29.10.40](https://border.bot/countries/united-states/hs-codes/7304291040) Having a wall thickness of 12.7 mm or more - [7304.29.10.50](https://border.bot/countries/united-states/hs-codes/7304291050) Having a wall thickness less than 12.7 mm - [7304.29.10.60](https://border.bot/countries/united-states/hs-codes/7304291060) Having a wall thickness of 12.7 mm or more - [7304.29.10.80](https://border.bot/countries/united-states/hs-codes/7304291080) Having an outside diameter exceeding 406.4 mm - [7304.29.20.10](https://border.bot/countries/united-states/hs-codes/7304292010) Having a wall thickness less than 12.7 mm - [7304.29.20.20](https://border.bot/countries/united-states/hs-codes/7304292020) Having a wall thickness of 12.7 mm or more - [7304.29.20.30](https://border.bot/countries/united-states/hs-codes/7304292030) Having a wall thickness less than 12.7 mm - [7304.29.20.40](https://border.bot/countries/united-states/hs-codes/7304292040) Having a wall thickness of 12.7 mm or more - [7304.29.20.50](https://border.bot/countries/united-states/hs-codes/7304292050) Having a wall thickness less than 12.7 mm - [7304.29.20.60](https://border.bot/countries/united-states/hs-codes/7304292060) Having a wall thickness of 12.7 mm or more - [7304.29.31.10](https://border.bot/countries/united-states/hs-codes/7304293110) Having a wall thickness less than 12.7 mm - [7304.29.31.20](https://border.bot/countries/united-states/hs-codes/7304293120) Having a wall thickness of 12.7 mm or more - [7304.29.31.30](https://border.bot/countries/united-states/hs-codes/7304293130) Having a wall thickness less than 12.7 mm - [7304.29.31.40](https://border.bot/countries/united-states/hs-codes/7304293140) Having a wall thickness of 12.7 mm or more - [7304.29.31.50](https://border.bot/countries/united-states/hs-codes/7304293150) Having a wall thickness less than 12.7 mm - [7304.29.31.60](https://border.bot/countries/united-states/hs-codes/7304293160) Having a wall thickness of 12.7 mm or more - [7304.29.31.80](https://border.bot/countries/united-states/hs-codes/7304293180) Having an outside diameter exceeding 406.4 mm - [7304.29.41.10](https://border.bot/countries/united-states/hs-codes/7304294110) Having a wall thickness less than 12.7 mm - [7304.29.41.20](https://border.bot/countries/united-states/hs-codes/7304294120) Having a wall thickness of 12.7 mm or more - [7304.29.41.30](https://border.bot/countries/united-states/hs-codes/7304294130) Having a wall thickness less than 12.7 mm - [7304.29.41.40](https://border.bot/countries/united-states/hs-codes/7304294140) Having a wall thickness of 12.7 mm or more - [7304.29.41.50](https://border.bot/countries/united-states/hs-codes/7304294150) Having a wall thickness less than 12.7 mm - [7304.29.41.60](https://border.bot/countries/united-states/hs-codes/7304294160) Having a wall thickness of 12.7 mm or more - [7304.29.41.80](https://border.bot/countries/united-states/hs-codes/7304294180) Having an outside diameter exceeding 406.4 mm - [7304.29.50.15](https://border.bot/countries/united-states/hs-codes/7304295015) Having a wall thickness not exceeding 9.5 mm - [7304.29.50.30](https://border.bot/countries/united-states/hs-codes/7304295030) Having a wall thickness exceeding 9.5 mm - [7304.29.50.45](https://border.bot/countries/united-states/hs-codes/7304295045) Having an outside diameter exceeding 114.3 mm but less than 215.9 mm - [7304.29.50.60](https://border.bot/countries/united-states/hs-codes/7304295060) Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm - [7304.29.50.75](https://border.bot/countries/united-states/hs-codes/7304295075) Having an outside diameter exceeding 406.4 mm - [7304.29.61.15](https://border.bot/countries/united-states/hs-codes/7304296115) Having a wall thickness not exceeding 9.5 mm - [7304.29.61.30](https://border.bot/countries/united-states/hs-codes/7304296130) Having a wall thickness exceeding 9.5 mm - [7304.29.61.45](https://border.bot/countries/united-states/hs-codes/7304296145) Having an outside diameter exceeding 114.3 mm but less than 215.9 mm - [7304.29.61.60](https://border.bot/countries/united-states/hs-codes/7304296160) Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm - [7304.29.61.75](https://border.bot/countries/united-states/hs-codes/7304296175) Having an outside diameter exceeding 406.4 mm - Previous line: [7304.29.20.60](https://border.bot/countries/united-states/hs-codes/7304292060) Having a wall thickness of 12.7 mm or more - Next line: [7304.29.31.10](https://border.bot/countries/united-states/hs-codes/7304293110) Having a wall thickness less than 12.7 mm ## Frequently asked questions ### What does tariff line 7304.29.20.80 cover in the United States tariff? In the United States tariff, line 7304.29.20.80 covers casing, tubing and drill pipe, of a kind used in drilling for oil or gas, casing, of iron or nonalloy steel, having an outside diameter exceeding 406.4 mm. ### What is the general (MFN) duty on 7304.29.20.80 in the United States? Goods under this line enter free of general (MFN) duty. The rate is published on 7304.29.20. ## Sources and updates The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. This page was last updated on 9 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Official source files: - https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false Machine-readable: https://border.bot/countries/united-states/hs-codes/7304292080.json