| 7306.61.10 | 00 | Having a wall thickness of 4 mm or more: | | | | |
| 7306.61.10 | 00 | Of iron or nonalloy steel | kg | Free | | 1% |
| 7306.61.50 | 00 | Having a wall thickness of less than 4 mm: | | | | |
| 7306.61.50 | 00 | Of iron or nonalloy steel | kg | Free | | 25% |
| 7306.61.70 | 30 | Of stainless steel | kg | | | |
| 7306.69 | | Of other noncircular cross section: | | | | |
| 7306.69.10 | 00 | Having a wall thickness of 4 mm or more: | | | | |
| 7306.69.10 | 00 | Of iron or nonalloy steel | kg | Free | | 1% |
| 7306.69.50 | 00 | Having a wall thickness of less than 4 mm: | | | | |
| 7306.69.50 | 00 | Of iron or nonalloy steel | kg | Free | | 25% |
| 7306.69.70 | 30 | Of stainless steel | kg | | | |
| 7306.90.10 | 00 | Of iron or nonalloy steel | kg | Free | | 5.5% |
| 7307 | | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: | | | | |
| 7307.11.00 | | Cast fittings: | | | | |
| 7307.11.00 | | Of nonmalleable cast iron | | 4.8% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 25% |
| 7307.11.00 | 30 | For threaded pipe | kg | | | |
| 7307.11.00 | 45 | For cast-iron soil pipe | kg | | | |
| 7307.19.30 | | Ductile fittings | | 5.6% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P, SG) | 45% |
| 7307.19.30 | 40 | Grooved-end fittings (including grooved couplings) | kg | | | |
| 7307.19.30 | 70 | With mechanical, push-on (rubber compression) or flanged joints attached | kg | | | |
| 7307.19.90 | 30 | Unions | kg | | | |
| 7307.19.90 | 40 | Grooved-end fittings (including grooved couplings) | kg | | | |
| 7307.21 | | Other, of stainless steel: | | | | |
| 7307.21.10 | 00 | Not machined, not tooled and not otherwise processed after forging | kg | 3.3% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 34% |
| 7307.22.10 | 00 | Sleeves (couplings) | kg | Free | | 45% |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
