# United States tariff lines under HS 7305.20

> The United States tariff splits HS 7305.20 (casing of a kind used in drilling for oil or gas) into 4 national lines: 7305.20.20.00 (threaded or coupled), 7305.20.40.00 (other), 7305.20.60.00 (threaded or coupled) and 7305.20.80.00 (other). Every United States line under 7305.20 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/730520
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) / [7305.20](https://border.bot/countries/united-states/hs-codes/730520)

## Key facts

- HS subheading: [7305.20](https://border.bot/hs-codes/730520)
- Duty (MFN): Free
- National lines: 4
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 73: Articles of iron or steel

## United States lines under 7305.20

The United States tariff splits HS 7305.20 (casing of a kind used in drilling for oil or gas) into 4 national lines: 7305.20.20.00 (threaded or coupled), 7305.20.40.00 (other), 7305.20.60.00 (threaded or coupled) and 7305.20.80.00 (other).

Every United States line under 7305.20 is free of general (MFN) duty.

- [7305.20.20.00](https://border.bot/countries/united-states/hs-codes/7305202000) Casing of a kind used in drilling for oil or gas, Of iron or nonalloy steel, Threaded or coupled. Duty (MFN): free
- [7305.20.40.00](https://border.bot/countries/united-states/hs-codes/7305204000) Casing of a kind used in drilling for oil or gas, Of iron or nonalloy steel, Other. Duty (MFN): free
- [7305.20.60.00](https://border.bot/countries/united-states/hs-codes/7305206000) Casing of a kind used in drilling for oil or gas, Of alloy steel, Threaded or coupled. Duty (MFN): free
- [7305.20.80.00](https://border.bot/countries/united-states/hs-codes/7305208000) Casing of a kind used in drilling for oil or gas, Of alloy steel, Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 7305.20 yet.

- [The Harmonized System text for 7305.20](https://border.bot/hs-codes/730520)

- Previous subheading: [7305.19](https://border.bot/countries/united-states/hs-codes/730519) Other
- Next subheading: [7305.31](https://border.bot/countries/united-states/hs-codes/730531) Longitudinally welded

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7305.20?

The United States tariff splits HS 7305.20 (casing of a kind used in drilling for oil or gas) into 4 national lines: 7305.20.20.00 (threaded or coupled), 7305.20.40.00 (other), 7305.20.60.00 (threaded or coupled) and 7305.20.80.00 (other).

### What is the duty on HS 7305.20 in the United States?

Every United States line under 7305.20 is free of general (MFN) duty.

## 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/730520.json