| 7304.59.20 | 45 | Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm | kg | | | |
| 7304.59.20 | 55 | Having an outside diameter exceeding 114.3 mm but less than 190.5 mm | kg | | | |
| 7304.59.20 | 60 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm | kg | | | |
| 7304.59.20 | 70 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm | kg | | | |
| 7304.59.20 | 80 | Having an outside diameter exceeding 406.4 mm | kg | | | |
| 7304.59.80 | 80 | Having an outside diameter exceeding 406.4 mm | kg | | | |
| 7304.59.80 | 15 | Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm: | | | | |
| 7304.59.80 | 20 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | kg | | | |
| 7304.59.80 | 25 | Having a wall thickness exceeding 12.7 mm | kg | | | |
| 7304.59.80 | 30 | Having an outside diameter exceeding 114.3 mm but less than 190.5 mm: | | | | |
| 7304.59.80 | 60 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | | | | |
| 7304.59.80 | 45 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm: | | | | |
| 7305.11 | | Longitudinally submerged arc welded: | | | | |
| 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 | | | |
