| 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 | | Of alloy steel | | Free | | 10% |
| 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 | | Casing and tubing of a kind used in drilling for oil or gas: | | | | |
| 7306.21 | | Welded of stainless steel: | | | | |
| 7306.21.30 | 00 | Casing: | | | | |
| 7306.29.10 | | Casing: | | | | |
| 7306.29.10 | | Of iron or nonalloy steel: | | | | |
| 7306.29.60 | | Of iron or nonalloy steel | | Free | | 5.5% |
| 7306.30 | | Other, welded, of circular cross section, of iron or nonalloy steel: | | | | |
| 7306.30.10 | 00 | Having a wall thickness of less than 1.65 mm | kg | Free | | 25% |
| 7306.30.30 | 00 | Having a wall thickness of 1.65 mm or more: | | | | |
| 7306.30.30 | 00 | Tapered steel pipes and tubes principally used as parts of illuminating articles | kg | Free | | 45% |
| 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 | 28 | Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit | kg | | | |
| 7306.30.50 | 35 | Tube and pipe hollows for redrawing | kg | | | |
| 7306.30.50 | 85 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm: | | | | |
| 7306.40 | | Other, welded, of circular cross section, of stainless steel: | | | | |
| 7306.40.10 | | Having a wall thickness of less than 1.65 mm | | Free | | 36% |
| 7306.40.10 | 10 | Containing more than 1.5 percent but less than 5 percent by weight of molybdenum | kg | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
