Import duty / Chapter 73 / Heading 7307
Heading 7307 covers 10 tariff lines in LoadLoom's table; 3 of them clear duty-free under USMCA for goods made in Canada, the US or Mexico. Published US and Canadian rates below, verified October 2026. Pick the line that matches your goods for the worked example and border steps.
| HS code | Goods | US duty | Canada duty | USMCA |
|---|---|---|---|---|
| 7307.11 | Cast iron; cast fittings, of non-malleable cast iron | 4.8% | Free | Free with certificate |
| 7307.19 | Iron or steel; cast fittings, other than of non-malleable cast iron | 5.6% | Free | Not eligible |
| 7307.21 | Steel, stainless; tube or pipe fittings, flanges, of stainless steel | 3.3% | Free | Not eligible |
| 7307.22 | Steel, stainless; tube or pipe fittings, threaded elbows, bends and sleeves | Free | Free | Not eligible |
| 7307.23 | Steel, stainless; tube or pipe fittings, butt welding fittings | 5% | Free | Free with certificate |
| 7307.29 | Steel, stainless; tube or pipe fittings, n.e.c. in item no. 7307.2 | 5% | 4.5% | Free with certificate |
| 7307.91 | Iron or steel; tube or pipe fittings, flanges, other than stainless steel | 3.3% | Free | Not eligible |
| 7307.92 | Iron or steel; tube or pipe fittings, threaded elbows, bends and sleeves, other than stainless steel | Free | Free | Not eligible |
| 7307.93 | Iron or steel; tube or pipe fittings, butt welding fittings, other than stainless steel | 6.2% | Free | Not eligible |
| 7307.99 | Iron or steel; tube or pipe fittings, n.e.c. in item no. 7307.9, other than stainless steel | 3.7% | Free | Not eligible |
This page is a free reference for shippers, not a customs ruling. Final classification and duty are determined by the licensed customs broker at entry, and government amounts are always billed at actual. Rates change with each tariff edition and trade action.
