# United States tariff lines under HS 7307.93

> The United States tariff splits HS 7307.93 (other: Butt welding fittings) into 6 national lines: 7307.93.30.10 (not machined, not tooled and not otherwise processed after forging), 7307.93.30.40 (other), 7307.93.60.00 (of alloy steel (except stainless steel)), 7307.93.90.10 (not machined, not tooled and not otherwise processed after forging) and 2 others. The general (MFN) duty differs by line: 6.2% on 7307.93.30.10, 6.2% on 7307.93.30.40, 5.5% on 7307.93.60.00, 4.3% on 7307.93.90.10, 4.3% on 7307.93.90.40 and 4.3% on 7307.93.90.60.

Source: https://border.bot/countries/united-states/hs-codes/730793
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) / [7307.93](https://border.bot/countries/united-states/hs-codes/730793)

## Key facts

- HS subheading: [7307.93](https://border.bot/hs-codes/730793)
- National lines: 6
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 73: Articles of iron or steel

## United States lines under 7307.93

The United States tariff splits HS 7307.93 (other: Butt welding fittings) into 6 national lines: 7307.93.30.10 (not machined, not tooled and not otherwise processed after forging), 7307.93.30.40 (other), 7307.93.60.00 (of alloy steel (except stainless steel)), 7307.93.90.10 (not machined, not tooled and not otherwise processed after forging) and 2 others.

The general (MFN) duty differs by line: 6.2% on 7307.93.30.10, 6.2% on 7307.93.30.40, 5.5% on 7307.93.60.00, 4.3% on 7307.93.90.10, 4.3% on 7307.93.90.40 and 4.3% on 7307.93.90.60.

- [7307.93.30.10](https://border.bot/countries/united-states/hs-codes/7307933010) Other, Butt welding fittings, With an inside diameter of less than 360 mm, Of iron or nonalloy steel, Not machined, not tooled and not otherwise processed after forging. Duty (MFN): 6.2%
- [7307.93.30.40](https://border.bot/countries/united-states/hs-codes/7307933040) Other, Butt welding fittings, With an inside diameter of less than 360 mm, Of iron or nonalloy steel, Other. Duty (MFN): 6.2%
- [7307.93.60.00](https://border.bot/countries/united-states/hs-codes/7307936000) Other, Butt welding fittings, With an inside diameter of less than 360 mm, Of alloy steel (except stainless steel). Duty (MFN): 5.5%
- [7307.93.90.10](https://border.bot/countries/united-states/hs-codes/7307939010) Other, Butt welding fittings, With an inside diameter of 360 mm or more, Of iron or nonalloy steel, Not machined, not tooled and not otherwise processed after forging. Duty (MFN): 4.3%
- [7307.93.90.40](https://border.bot/countries/united-states/hs-codes/7307939040) Other, Butt welding fittings, With an inside diameter of 360 mm or more, Of iron or nonalloy steel, Other. Duty (MFN): 4.3%
- [7307.93.90.60](https://border.bot/countries/united-states/hs-codes/7307939060) Other, Butt welding fittings, With an inside diameter of 360 mm or more, Of alloy steel (except stainless steel). Duty (MFN): 4.3%

## In other countries

No other national tariff on border.bot has live lines under 7307.93 yet.

- [The Harmonized System text for 7307.93](https://border.bot/hs-codes/730793)

- Previous subheading: [7307.92](https://border.bot/countries/united-states/hs-codes/730792) Threaded elbows, bends and sleeves
- Next subheading: [7307.99](https://border.bot/countries/united-states/hs-codes/730799) Other

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7307.93?

The United States tariff splits HS 7307.93 (other: Butt welding fittings) into 6 national lines: 7307.93.30.10 (not machined, not tooled and not otherwise processed after forging), 7307.93.30.40 (other), 7307.93.60.00 (of alloy steel (except stainless steel)), 7307.93.90.10 (not machined, not tooled and not otherwise processed after forging) and 2 others.

### What is the duty on HS 7307.93 in the United States?

The general (MFN) duty differs by line: 6.2% on 7307.93.30.10, 6.2% on 7307.93.30.40, 5.5% on 7307.93.60.00, 4.3% on 7307.93.90.10, 4.3% on 7307.93.90.40 and 4.3% on 7307.93.90.60.

## 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/730793.json