# United States tariff line 7304.24.40.40: Having a wall thickness of 12.7 mm or more > In the United States tariff, line 7304.24.40.40 covers casing, tubing and drill pipe, of a kind used in drilling for oil or gas, other, of stainless steel, casing, having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm, having a wall thickness of 12.7 mm or more. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7304.24 in heading 73.04 (chapter 73). Source: https://border.bot/countries/united-states/hs-codes/7304244040 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) / [7304.24](https://border.bot/countries/united-states/hs-codes/730424) / [7304.24.40.40](https://border.bot/countries/united-states/hs-codes/7304244040) ## Key facts - Tariff line: 7304.24.40.40 - Covers: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas, other, of stainless steel, casing, having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm, having a wall thickness of 12.7 mm or more - Duty (MFN): Free - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [7304.24](https://border.bot/hs-codes/730424) ## What this line covers In the United States tariff, line 7304.24.40.40 covers casing, tubing and drill pipe, of a kind used in drilling for oil or gas, other, of stainless steel, casing, having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm, having a wall thickness of 12.7 mm or more. Its legal text is “Having a wall thickness of 12.7 mm or more”, read under “Casing, tubing and drill pipe, of a kind used in drilling for oil or gas”, “Other, of stainless steel”, “Casing”, “Other” and “Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm”. ## How it is structured It falls under HS subheading 7304.24 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 7304.24: Casing, tubing and drill pipe, of a kind used in drilling for oil or gas - Within the subheading: Other, of stainless steel - Within the subheading: Casing - Within the subheading: Other - Within the subheading: Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm - Line 7304.24.40.40: Having a wall thickness of 12.7 mm or more ## Duty Goods under this line enter free of general (MFN) duty. The rate is published on 7304.24.40. ## In other countries No other national tariff on border.bot has live lines under 7304.24 yet. - [The Harmonized System text for 7304.24](https://border.bot/hs-codes/730424) ## Other lines under 7304.24 - [7304.24.30.10](https://border.bot/countries/united-states/hs-codes/7304243010) Having a wall thickness less than 12.7 mm - [7304.24.30.20](https://border.bot/countries/united-states/hs-codes/7304243020) Having a wall thickness of 12.7 mm or more - [7304.24.30.30](https://border.bot/countries/united-states/hs-codes/7304243030) Having a wall thickness less than 12.7 mm - [7304.24.30.40](https://border.bot/countries/united-states/hs-codes/7304243040) Having a wall thickness of 12.7 mm or more - [7304.24.30.45](https://border.bot/countries/united-states/hs-codes/7304243045) Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm - [7304.24.30.80](https://border.bot/countries/united-states/hs-codes/7304243080) Having an outside diameter exceeding 406.4 mm - [7304.24.40.10](https://border.bot/countries/united-states/hs-codes/7304244010) Having a wall thickness less than 12.7 mm - [7304.24.40.20](https://border.bot/countries/united-states/hs-codes/7304244020) Having a wall thickness of 12.7 mm or more - [7304.24.40.30](https://border.bot/countries/united-states/hs-codes/7304244030) Having a wall thickness less than 12.7 mm - [7304.24.40.50](https://border.bot/countries/united-states/hs-codes/7304244050) Having a wall thickness less than 12.7 mm - [7304.24.40.60](https://border.bot/countries/united-states/hs-codes/7304244060) Having a wall thickness of 12.7 mm or more - [7304.24.40.80](https://border.bot/countries/united-states/hs-codes/7304244080) Having an outside diameter exceeding 406.4 mm - [7304.24.60.15](https://border.bot/countries/united-states/hs-codes/7304246015) Having a wall thickness not exceeding 9.5 mm - [7304.24.60.30](https://border.bot/countries/united-states/hs-codes/7304246030) Having a wall thickness exceeding 9.5 mm - [7304.24.60.45](https://border.bot/countries/united-states/hs-codes/7304246045) Having an outside diameter exceeding 114.3 mm but less than 215.9 mm - [7304.24.60.60](https://border.bot/countries/united-states/hs-codes/7304246060) Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm - [7304.24.60.75](https://border.bot/countries/united-states/hs-codes/7304246075) Having an outside diameter exceeding 406.4 mm - Previous line: [7304.24.40.30](https://border.bot/countries/united-states/hs-codes/7304244030) Having a wall thickness less than 12.7 mm - Next line: [7304.24.40.50](https://border.bot/countries/united-states/hs-codes/7304244050) Having a wall thickness less than 12.7 mm ## Frequently asked questions ### What does tariff line 7304.24.40.40 cover in the United States tariff? In the United States tariff, line 7304.24.40.40 covers casing, tubing and drill pipe, of a kind used in drilling for oil or gas, other, of stainless steel, casing, having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm, having a wall thickness of 12.7 mm or more. ### What is the general (MFN) duty on 7304.24.40.40 in the United States? Goods under this line enter free of general (MFN) duty. The rate is published on 7304.24.40. ## 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/7304244040.json