| 7305.11.10 | 30 | With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm | kg | | | |
| 7305.11.10 | 60 | With an external diameter exceeding 609.6 mm | kg | | | |
| 7305.12 | | Other, longitudinally welded: | | | | |
| 7305.12.10 | | Of iron or nonalloy steel | | Free | | 5.5% |
| 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 | | Of iron or nonalloy steel | | Free | | 5.5% |
| 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 | | | |
| 7305.20 | | Casing of a kind used in drilling for oil or gas: | | | | |
| 7305.20.20 | 00 | Of iron or nonalloy steel: | | | | |
| 7305.31 | | Longitudinally welded: | | | | |
| 7305.31.20 | 00 | Tapered pipes and tubes of steel principally used as parts of illuminating articles | kg | Free | | 45% |
| 7305.31.40 | 00 | Of iron or nonalloy steel | kg | Free | | 5.5% |
| 7305.39.10 | 00 | Of iron or nonalloy steel | kg | Free | | 5.5% |
| 7305.90.10 | 00 | Of iron or nonalloy steel | kg | Free | | 5.5% |
| 7306 | | Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: | | | | |
| 7306.11.00 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7306.11.00 | | Welded, of stainless steel | | Free | | 10% |
| 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 | | Of iron or nonalloy steel | | Free | | 5.5% |
| 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 | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
