| 7306.29.10 | 90 | Other | kg | | | |
| 7306.29.20 | 00 | Other | kg | Free | | 1% |
| 7306.29.31 | 00 | Other: | | | | |
| 7306.29.31 | 00 | Threaded or coupled | kg | Free | | 28% |
| 7306.29.41 | 00 | Other | kg | Free | | 8.5% |
| 7306.29.60 | | Tubing: | | | | |
| 7306.29.60 | | Of iron or nonalloy steel | | Free | | 5.5% |
| 7306.29.60 | 10 | Imported with coupling | kg | | | |
| 7306.29.60 | 50 | Other | kg | | | |
| 7306.29.81 | | Other | | Free | | 10% |
| 7306.29.81 | 10 | Imported with coupling | kg | | | |
| 7306.29.81 | 50 | Other | kg | | | |
| 7306.30 | | Other, welded, of circular cross section, of iron or nonalloy steel: | | | | |
| 7306.30.10 | 00 | Having a wall thickness of less than 1.65 mm | kg | Free | | 25% |
| 7306.30.30 | 00 | Having a wall thickness of 1.65 mm or more: | | | | |
| 7306.30.30 | 00 | Tapered steel pipes and tubes principally used as parts of illuminating articles | kg | Free | | 45% |
| 7306.30.50 | | Other | | Free | | 5.5% |
| 7306.30.50 | 10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold drawn | kg | | | |
| 7306.30.50 | 15 | Other, cold-drawn | kg | | | |
| 7306.30.50 | 20 | Other, cold-rolled (cold-reduced) with a wall thickness not exceeding 2.54 mm | kg | | | |
| 7306.30.50 | 25 | Other: | | | | |
| 7306.30.50 | 25 | With an outside diameter not exceeding 114.3 mm: | | | | |
| 7306.30.50 | 25 | Galvanized: | | | | |
| 7306.30.50 | 25 | Imported with coupling | kg | | | |
| 7306.30.50 | 28 | Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit | kg | | | |
