# United States tariff lines under HS 7304.51

> The United States tariff splits HS 7304.51 (other, of circular cross-section, of other alloy steel: Cold-drawn or cold-rolled (cold-reduced)) into 5 national lines: 7304.51.10.00 (suitable for use in the manufacture of ball or roller bearings), 7304.51.50.05 (of high-nickel alloy steel), 7304.51.50.15 (of heat-resisting steel), 7304.51.50.45 (other) and 1 other. Every United States line under 7304.51 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/730451
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) / [7304.51](https://border.bot/countries/united-states/hs-codes/730451)

## Key facts

- HS subheading: [7304.51](https://border.bot/hs-codes/730451)
- Duty (MFN): Free
- National lines: 5
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 73: Articles of iron or steel

## United States lines under 7304.51

The United States tariff splits HS 7304.51 (other, of circular cross-section, of other alloy steel: Cold-drawn or cold-rolled (cold-reduced)) into 5 national lines: 7304.51.10.00 (suitable for use in the manufacture of ball or roller bearings), 7304.51.50.05 (of high-nickel alloy steel), 7304.51.50.15 (of heat-resisting steel), 7304.51.50.45 (other) and 1 other.

Every United States line under 7304.51 is free of general (MFN) duty.

- [7304.51.10.00](https://border.bot/countries/united-states/hs-codes/7304511000) Other, of circular cross section, of other alloy steel, Cold-drawn or cold-rolled (cold-reduced), Suitable for use in the manufacture of ball or roller bearings. Duty (MFN): free
- [7304.51.50.05](https://border.bot/countries/united-states/hs-codes/7304515005) Other, of circular cross section, of other alloy steel, Cold-drawn or cold-rolled (cold-reduced), Other, Of high-nickel alloy steel. Duty (MFN): free
- [7304.51.50.15](https://border.bot/countries/united-states/hs-codes/7304515015) Other, of circular cross section, of other alloy steel, Cold-drawn or cold-rolled (cold-reduced), Other, Other, Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, Of heat-resisting steel. Duty (MFN): free
- [7304.51.50.45](https://border.bot/countries/united-states/hs-codes/7304515045) Other, of circular cross section, of other alloy steel, Cold-drawn or cold-rolled (cold-reduced), Other, Other, Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, Other. Duty (MFN): free
- [7304.51.50.60](https://border.bot/countries/united-states/hs-codes/7304515060) Other, of circular cross section, of other alloy steel, Cold-drawn or cold-rolled (cold-reduced), Other, Other, Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 7304.51 yet.

- [The Harmonized System text for 7304.51](https://border.bot/hs-codes/730451)

- Previous subheading: [7304.49](https://border.bot/countries/united-states/hs-codes/730449) Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel
- Next subheading: [7304.59](https://border.bot/countries/united-states/hs-codes/730459) Other

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7304.51?

The United States tariff splits HS 7304.51 (other, of circular cross-section, of other alloy steel: Cold-drawn or cold-rolled (cold-reduced)) into 5 national lines: 7304.51.10.00 (suitable for use in the manufacture of ball or roller bearings), 7304.51.50.05 (of high-nickel alloy steel), 7304.51.50.15 (of heat-resisting steel), 7304.51.50.45 (other) and 1 other.

### What is the duty on HS 7304.51 in the United States?

Every United States line under 7304.51 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/730451.json