# United States tariff lines under HS 7409.31

> The United States tariff splits HS 7409.31 (copper plates, sheets and strip, of a thickness exceeding 0.15 mm, of copper-tin base alloys (bronze): In coils) into 3 national lines: 7409.31.10.00 (of a thickness of 5 mm or more), 7409.31.50.00 (of a width of 500 mm or more) and 7409.31.90.00 (of a width of less than 500 mm). The general (MFN) duty differs by line: 3% on 7409.31.10.00, 1.7% on 7409.31.50.00 and 3% on 7409.31.90.00.

Source: https://border.bot/countries/united-states/hs-codes/740931
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 74](https://border.bot/countries/united-states/hs-codes/74) / [7409.31](https://border.bot/countries/united-states/hs-codes/740931)

## Key facts

- HS subheading: [7409.31](https://border.bot/hs-codes/740931)
- National lines: 3
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 74: Copper and articles thereof

## United States lines under 7409.31

The United States tariff splits HS 7409.31 (copper plates, sheets and strip, of a thickness exceeding 0.15 mm, of copper-tin base alloys (bronze): In coils) into 3 national lines: 7409.31.10.00 (of a thickness of 5 mm or more), 7409.31.50.00 (of a width of 500 mm or more) and 7409.31.90.00 (of a width of less than 500 mm).

The general (MFN) duty differs by line: 3% on 7409.31.10.00, 1.7% on 7409.31.50.00 and 3% on 7409.31.90.00.

- [7409.31.10.00](https://border.bot/countries/united-states/hs-codes/7409311000) Of copper-tin base alloys (bronze), In coils, Of a thickness of 5 mm or more. Duty (MFN): 3%
- [7409.31.50.00](https://border.bot/countries/united-states/hs-codes/7409315000) Of copper-tin base alloys (bronze), In coils, Of a thickness of less than 5 mm, Of a width of 500 mm or more. Duty (MFN): 1.7%
- [7409.31.90.00](https://border.bot/countries/united-states/hs-codes/7409319000) Of copper-tin base alloys (bronze), In coils, Of a thickness of less than 5 mm, Of a width of less than 500 mm. Duty (MFN): 3%

## In other countries

No other national tariff on border.bot has live lines under 7409.31 yet.

- [The Harmonized System text for 7409.31](https://border.bot/hs-codes/740931)

- Previous subheading: [7409.29](https://border.bot/countries/united-states/hs-codes/740929) Copper plates, sheets and strip, of a thickness exceeding 0.15 mm
- Next subheading: [7409.39](https://border.bot/countries/united-states/hs-codes/740939) Other

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7409.31?

The United States tariff splits HS 7409.31 (copper plates, sheets and strip, of a thickness exceeding 0.15 mm, of copper-tin base alloys (bronze): In coils) into 3 national lines: 7409.31.10.00 (of a thickness of 5 mm or more), 7409.31.50.00 (of a width of 500 mm or more) and 7409.31.90.00 (of a width of less than 500 mm).

### What is the duty on HS 7409.31 in the United States?

The general (MFN) duty differs by line: 3% on 7409.31.10.00, 1.7% on 7409.31.50.00 and 3% on 7409.31.90.00.

## 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/740931.json