| 7306.61 | | Other, welded, of noncircular cross section: | | | | |
| 7306.61 | | Of square or rectangular cross section: | | | | |
| 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% |
| 7306.61.30 | 00 | Of alloy steel | kg | Free | | 28% |
| 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 | | Of alloy steel | | Free | | 35% |
| 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% |
| 7306.69.30 | 00 | Of alloy steel | kg | Free | | 28% |
| 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 | | Of alloy steel | | Free | | 35% |
| 7306.69.70 | 30 | Of stainless steel | kg | | | |
| 7306.90.10 | 00 | Of iron or nonalloy steel | kg | Free | | 5.5% |
| 7306.90.50 | 00 | Of alloy steel | kg | Free | | 10% |
| 7307 | | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: | | | | |
| 7307.11.00 | | Of nonmalleable cast iron | | 4.8% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 25% |
| 7307.21 | | Other, of stainless steel: | | | | |
| 7307.91.10 | 00 | Of iron or nonalloy steel | kg | 3.3% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 25% |
| 7307.91.30 | 00 | Of alloy steel (except stainless steel) | kg | 3.2% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 33% |
| 7307.91.50 | 10 | With an inside diameter of less than 360 mm: | | | | |
