# United States tariff lines under HS 7315.12

> The United States tariff splits HS 7315.12 (articulated link chain and parts thereof: Other chain) into 4 national lines: 7315.12.00.20 (of not over 50 mm pitch and containing more than 3 parts per pitch), 7315.12.00.40 (welded steel chain), 7315.12.00.60 (cast and combination chain) and 7315.12.00.80 (other). Every United States line under 7315.12 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/731512
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) / [7315.12](https://border.bot/countries/united-states/hs-codes/731512)

## Key facts

- HS subheading: [7315.12](https://border.bot/hs-codes/731512)
- 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 7315.12

The United States tariff splits HS 7315.12 (articulated link chain and parts thereof: Other chain) into 4 national lines: 7315.12.00.20 (of not over 50 mm pitch and containing more than 3 parts per pitch), 7315.12.00.40 (welded steel chain), 7315.12.00.60 (cast and combination chain) and 7315.12.00.80 (other).

Every United States line under 7315.12 is free of general (MFN) duty.

- [7315.12.00.20](https://border.bot/countries/united-states/hs-codes/7315120020) Articulated link chain and parts thereof, Other chain, Of not over 50 mm pitch and containing more than 3 parts per pitch. Duty (MFN): free
- [7315.12.00.40](https://border.bot/countries/united-states/hs-codes/7315120040) Articulated link chain and parts thereof, Other chain, Other, Welded steel chain. Duty (MFN): free
- [7315.12.00.60](https://border.bot/countries/united-states/hs-codes/7315120060) Articulated link chain and parts thereof, Other chain, Other, Cast and combination chain. Duty (MFN): free
- [7315.12.00.80](https://border.bot/countries/united-states/hs-codes/7315120080) Articulated link chain and parts thereof, Other chain, Other, Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 7315.12 yet.

- [The Harmonized System text for 7315.12](https://border.bot/hs-codes/731512)

- Previous subheading: [7315.11](https://border.bot/countries/united-states/hs-codes/731511) Chain and parts thereof, of iron or steel
- Next subheading: [7315.19](https://border.bot/countries/united-states/hs-codes/731519) Chain and parts thereof, of iron or steel

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7315.12?

The United States tariff splits HS 7315.12 (articulated link chain and parts thereof: Other chain) into 4 national lines: 7315.12.00.20 (of not over 50 mm pitch and containing more than 3 parts per pitch), 7315.12.00.40 (welded steel chain), 7315.12.00.60 (cast and combination chain) and 7315.12.00.80 (other).

### What is the duty on HS 7315.12 in the United States?

Every United States line under 7315.12 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/731512.json