7307
4-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel
This is a 4-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Codes within Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel
56 more specific lines fall under 7307.
- 7307.11.00Of nonmalleable cast iron8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings:4.8%
- 7307.11.00.30For threaded pipe10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Of nonmalleable cast iron
- 7307.11.00.45For cast-iron soil pipe10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Of nonmalleable cast iron > Other:
- 7307.11.00.60Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Of nonmalleable cast iron > Other:
- 7307.19Other6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings:
- 7307.19.30Ductile fittings8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other:5.6%
- 7307.19.30.40Grooved-end fittings (including grooved couplings)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Ductile fittings
- 7307.19.30.60Threaded10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Ductile fittings > Other:
- 7307.19.30.70With mechanical, push-on (rubber compression) or flanged joints attached10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Ductile fittings > Other:
- 7307.19.30.85Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Ductile fittings > Other:
- 7307.19.90Other8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other:6.2%
- 7307.19.90.30Unions10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Other
- 7307.19.90.40Grooved-end fittings (including grooved couplings)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Other > Other:
- 7307.19.90.60Threaded10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Other > Other: > Other:
- 7307.19.90.80Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Other: > Other > Other: > Other:
- 7307.21Flanges6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel:
- 7307.21.10.00Not machined, not tooled and not otherwise processed after forging10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Flanges:3.3%
- 7307.21.50.00Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Flanges:5.6%
- 7307.22Threaded elbows, bends and sleeves6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel:
- 7307.22.10.00Sleeves (couplings)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Threaded elbows, bends and sleeves:Free
- 7307.22.50.00Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Threaded elbows, bends and sleeves:6.2%
- 7307.23.00Butt welding fittings8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel:5%
- 7307.23.00.30Not machined, not tooled and not otherwise processed after forming10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Butt welding fittings
- 7307.23.00.90Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Butt welding fittings
- 7307.29.00Other8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel:5%
- 7307.29.00.30Nipples10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Other
- 7307.29.00.90Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other, of stainless steel: > Other
- 7307.91Flanges6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other:
- 7307.91.10.00Of iron or nonalloy steel10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges: > Not machined, not tooled and not otherwise processed after forging:3.3%
- 7307.91.30.00Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges: > Not machined, not tooled and not otherwise processed after forging:3.2%
- 7307.91.50Other8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges:5.5%
- 7307.91.50.10Of iron or nonalloy steel10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges: > Other > With an inside diameter of less than 360 mm:
- 7307.91.50.30Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges: > Other > With an inside diameter of less than 360 mm:
- 7307.91.50.50Of iron or nonalloy steel10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges: > Other > With an inside diameter of 360 mm or more:
- 7307.91.50.70Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Flanges: > Other > With an inside diameter of 360 mm or more:
- 7307.92Threaded elbows, bends and sleeves6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other:
- 7307.92.30Sleeves (couplings)8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Threaded elbows, bends and sleeves:Free
- 7307.92.30.10Of iron or nonalloy steel10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Threaded elbows, bends and sleeves: > Sleeves (couplings)
- 7307.92.30.30Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Threaded elbows, bends and sleeves: > Sleeves (couplings)
- 7307.92.90.00Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Threaded elbows, bends and sleeves:6.2%
- 7307.93Butt welding fittings6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other:
- 7307.93.30Of iron or nonalloy steel8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of less than 360 mm:6.2%
- 7307.93.30.10Not machined, not tooled and not otherwise processed after forging10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of less than 360 mm: > Of iron or nonalloy steel
- 7307.93.30.40Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of less than 360 mm: > Of iron or nonalloy steel
- 7307.93.60.00Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of less than 360 mm:5.5%
- 7307.93.90With an inside diameter of 360 mm or more8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings:4.3%
- 7307.93.90.10Not machined, not tooled and not otherwise processed after forging10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of 360 mm or more > Of iron or nonalloy steel:
- 7307.93.90.40Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of 360 mm or more > Of iron or nonalloy steel:
- 7307.93.90.60Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of 360 mm or more
- 7307.99Other6-digit headingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other:
- 7307.99.10.00Of iron or nonalloy steel10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Other: > Not machined, not tooled and not otherwise processed after forging:3.7%
- 7307.99.30.00Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Other: > Not machined, not tooled and not otherwise processed after forging:3.2%
- 7307.99.50Other8-digit subheadingTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Other:4.3%
- 7307.99.50.15Nipples10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Other: > Other > Of iron or nonalloy steel:
- 7307.99.50.45Other10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Other: > Other > Of iron or nonalloy steel:
- 7307.99.50.60Of alloy steel (except stainless steel)10-digit statistical codeTube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Other: > Other
Chapter 73: Articles of Iron or Steel
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 73Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
Data loaded August 18, 2026.Check this chapter on hts.usitc.govReport an error with this codeHow this data is built