# United States tariff line 7315.12.00.20: Of not over 50 mm pitch and containing more than 3 parts per pitch

> In the United States tariff, line 7315.12.00.20 covers articulated link chain and parts thereof, other chain, of not over 50 mm pitch and containing more than 3 parts per pitch. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7315.12 in heading 73.15 (chapter 73).

Source: https://border.bot/countries/united-states/hs-codes/7315120020
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) / [7315.12.00.20](https://border.bot/countries/united-states/hs-codes/7315120020)

## Key facts

- Tariff line: 7315.12.00.20
- Covers: 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
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [7315.12](https://border.bot/hs-codes/731512)

## What this line covers

In the United States tariff, line 7315.12.00.20 covers articulated link chain and parts thereof, other chain, of not over 50 mm pitch and containing more than 3 parts per pitch.

Its legal text is “Of not over 50 mm pitch and containing more than 3 parts per pitch”, read under “Articulated link chain and parts thereof” and “Other chain”.

## How it is structured

It falls under HS subheading 7315.12 in heading 73.15 (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 73.15: Chain and parts thereof, of iron or steel
- Subheading 7315.12: Articulated link chain and parts thereof
- Within the subheading: Other chain
- Line 7315.12.00.20: Of not over 50 mm pitch and containing more than 3 parts per pitch

## Duty

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

The rate is published on 7315.12.00.

## 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)

## Other lines under 7315.12

- [7315.12.00.40](https://border.bot/countries/united-states/hs-codes/7315120040) Welded steel chain
- [7315.12.00.60](https://border.bot/countries/united-states/hs-codes/7315120060) Cast and combination chain
- [7315.12.00.80](https://border.bot/countries/united-states/hs-codes/7315120080) Other

- Previous line: [7315.11.00.60](https://border.bot/countries/united-states/hs-codes/7315110060) Other
- Next line: [7315.12.00.40](https://border.bot/countries/united-states/hs-codes/7315120040) Welded steel chain

## Frequently asked questions

### What does tariff line 7315.12.00.20 cover in the United States tariff?

In the United States tariff, line 7315.12.00.20 covers articulated link chain and parts thereof, other chain, of not over 50 mm pitch and containing more than 3 parts per pitch.

### What is the general (MFN) duty on 7315.12.00.20 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 7315.12.00.

## 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/7315120020.json