| 7305.11.10 | 60 | With an external diameter exceeding 609.6 mm | kg | | | |
| 7305.11.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg | | | |
| 7305.12 | | Other, longitudinally welded: | | | | |
| 7305.12.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg | | | |
| 7305.12.10 | 60 | With an external diameter exceeding 609.6 mm | kg | | | |
| 7305.19.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg | | | |
| 7305.19.10 | 60 | With an external diameter exceeding 609.6 mm | kg | | | |
| 7305.31 | | Longitudinally welded: | | | | |
| 7306.11.00 | 10 | With an outside diameter not exceeding 114.3 mm | kg | | | |
| 7306.11.00 | 50 | With an outside diameter exceeding 114.3 mm | kg | | | |
| 7306.19.10 | 10 | With an outside diameter not exceeding 114.3 mm | kg | | | |
| 7306.19.10 | 50 | With an outside diameter exceeding 114.3 mm | kg | | | |
| 7306.19.51 | 10 | With an outside diameter not exceeding 114.3 mm | kg | | | |
| 7306.19.51 | 50 | With an outside diameter exceeding 114.3 mm | kg | | | |
| 7306.21.80 | 10 | Imported with coupling | kg | | | |
| 7306.29.10 | 30 | Imported with coupling | kg | | | |
| 7306.29.60 | 10 | Imported with coupling | kg | | | |
| 7306.29.81 | 10 | Imported with coupling | kg | | | |
| 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 | 20 | Other, cold-rolled (cold-reduced) with a wall thickness not exceeding 2.54 mm | kg | | | |
| 7306.30.50 | 25 | With an outside diameter not exceeding 114.3 mm: | | | | |
| 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 | | | |
| 7306.30.50 | 40 | Other, imported with coupling | kg | | | |
| 7306.30.50 | 85 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm: | | | | |
