| 7306.40.50 | 90 | Other | kg | | | |
| 7306.50 | | Other, welded, of circular cross section, of other alloy steel: | | | | |
| 7306.50.10 | 00 | Having a wall thickness of less than 1.65 mm | kg | Free | | 35% |
| 7306.50.30 | 00 | Having a wall thickness of 1.65 mm or more: | | | | |
| 7306.50.50 | | Other | | Free | | 10% |
| 7306.50.50 | 10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn | kg | | | |
| 7306.50.50 | 30 | Other, cold-drawn or cold-rolled (cold- reduced) | kg | | | |
| 7306.50.50 | 50 | Other: | | | | |
| 7306.50.50 | 50 | With an outside diameter not exceeding 114.3 mm | kg | | | |
| 7306.50.50 | 70 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | kg | | | |
| 7306.61 | | Other, welded, of noncircular cross section: | | | | |
| 7306.61.10 | 00 | Having a wall thickness of 4 mm or more: | | | | |
| 7306.61.50 | 00 | Having a wall thickness of less than 4 mm: | | | | |
| 7306.61.70 | 60 | Other | kg | | | |
| 7306.69 | | Of other noncircular cross section: | | | | |
| 7306.69.10 | 00 | Having a wall thickness of 4 mm or more: | | | | |
| 7306.69.50 | 00 | Having a wall thickness of less than 4 mm: | | | | |
| 7306.69.70 | 60 | Other | kg | | | |
| 7306.90 | | Other: | | | | |
| 7307.11.00 | 30 | For threaded pipe | kg | | | |
| 7307.11.00 | 45 | Other: | | | | |
| 7307.11.00 | 60 | Other | kg | | | |
| 7307.19 | | Other: | | | | |
| 7307.19.30 | 60 | Other: | | | | |
| 7307.19.30 | 60 | Threaded | kg | | | |
