| 7304.29.10 | | Of iron or nonalloy steel: | | | | |
| 7304.29.31 | | Of other alloy steel: | | | | |
| 7304.29.50 | | Of iron or nonalloy steel | | Free | | 25% |
| 7304.29.61 | | Of other alloy steel | | Free | | 35% |
| 7304.31 | | Other, of circular cross section, of iron or nonalloy steel: | | | | |
| 7304.41 | | Other, of circular cross section, of stainless steel: | | | | |
| 7304.41.30 | 05 | Of high-nickel alloy steel | kg | | | |
| 7304.41.60 | 05 | Of high-nickel alloy steel | kg | | | |
| 7304.49.00 | 05 | Of high-nickel alloy steel | kg | | | |
| 7304.51 | | Other, of circular cross section, of other alloy steel: | | | | |
| 7304.51.50 | 05 | Of high-nickel alloy steel | kg | | | |
| 7304.51.50 | 15 | Of heat-resisting steel | kg | | | |
| 7304.59.20 | 30 | Of heat-resisting steel | kg | | | |
| 7304.59.60 | 00 | Of heat-resisting steel | kg | Free | | 36% |
| 7304.90.10 | 00 | Of iron or nonalloy steel | kg | Free | | 1% |
| 7304.90.30 | 00 | Of alloy steel | kg | Free | | 8.5% |
| 7304.90.50 | 00 | Of iron or nonalloy steel | kg | Free | | 25% |
| 7304.90.70 | 00 | Of alloy steel | kg | Free | | 35% |
| 7305 | | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: | | | | |
| 7305.11 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7305.11 | | Longitudinally submerged arc welded: | | | | |
| 7305.11.10 | | Of iron or nonalloy steel | | Free | | 5.5% |
| 7305.11.50 | 00 | Of alloy steel | kg | Free | | 10% |
| 7305.12 | | Other, longitudinally welded: | | | | |
| 7305.12.10 | | Of iron or nonalloy steel | | Free | | 5.5% |
