# United States tariff line 7306.50.50.70: With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm

> In the United States tariff, line 7306.50.50.70 covers other, welded, of circular cross section, of other alloy steel, having a wall thickness of 1.65 mm or more, with an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7306.50 in heading 73.06 (chapter 73).

Source: https://border.bot/countries/united-states/hs-codes/7306505070
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) / [7306.50](https://border.bot/countries/united-states/hs-codes/730650) / [7306.50.50.70](https://border.bot/countries/united-states/hs-codes/7306505070)

## Key facts

- Tariff line: 7306.50.50.70
- Covers: Other, welded, of circular cross section, of other alloy steel, having a wall thickness of 1.65 mm or more, with an outside diameter exceeding 114.3 mm but not 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: [7306.50](https://border.bot/hs-codes/730650)

## What this line covers

In the United States tariff, line 7306.50.50.70 covers other, welded, of circular cross section, of other alloy steel, having a wall thickness of 1.65 mm or more, with an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm.

Its legal text is “With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm”, read under “Other, welded, of circular cross section, of other alloy steel”, “Having a wall thickness of 1.65 mm or more”, “Other” and “Other”.

## How it is structured

It falls under HS subheading 7306.50 in heading 73.06 (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 73.06: Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel
- Subheading 7306.50: Other, welded, of circular cross section, of other alloy steel
- Within the subheading: Having a wall thickness of 1.65 mm or more
- Within the subheading: Other
- Within the subheading: Other
- Line 7306.50.50.70: With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm

## Duty

Goods under this line enter free of general (MFN) duty.

The rate is published on 7306.50.50.

## In other countries

No other national tariff on border.bot has live lines under 7306.50 yet.

- [The Harmonized System text for 7306.50](https://border.bot/hs-codes/730650)

## Other lines under 7306.50

- [7306.50.10.00](https://border.bot/countries/united-states/hs-codes/7306501000) Having a wall thickness of less than 1.65 mm
- [7306.50.30.00](https://border.bot/countries/united-states/hs-codes/7306503000) Tapered pipes and tubes of steel principally used as parts of illuminating articles
- [7306.50.50.10](https://border.bot/countries/united-states/hs-codes/7306505010) Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn
- [7306.50.50.30](https://border.bot/countries/united-states/hs-codes/7306505030) Other, cold-drawn or cold-rolled (cold- reduced)
- [7306.50.50.50](https://border.bot/countries/united-states/hs-codes/7306505050) With an outside diameter not exceeding 114.3 mm

- Previous line: [7306.50.50.50](https://border.bot/countries/united-states/hs-codes/7306505050) With an outside diameter not exceeding 114.3 mm
- Next line: [7306.61.10.00](https://border.bot/countries/united-states/hs-codes/7306611000) Of iron or nonalloy steel

## Frequently asked questions

### What does tariff line 7306.50.50.70 cover in the United States tariff?

In the United States tariff, line 7306.50.50.70 covers other, welded, of circular cross section, of other alloy steel, having a wall thickness of 1.65 mm or more, with an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm.

### What is the general (MFN) duty on 7306.50.50.70 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 7306.50.50.

## 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/7306505070.json