| 7304.29 | Other: | | | | |
| 7304.29.10 | Threaded or coupled | | Free | | 20% |
| 7304.29.20 | Other | | Free | | 1% |
| 7304.29.31 | Threaded or coupled | | Free | | 28% |
| 7304.29.41 | Other | | Free | | 8.5% |
| 7304.29.50 | Of iron or nonalloy steel | | Free | | 25% |
| 7304.29.61 | Of other alloy steel | | Free | | 35% |
| 7304.29.10.10 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.10.20 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.10.30 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.10.40 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.10.50 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.10.60 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.10.80 | Having an outside diameter exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.20.10 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.20.20 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.20.30 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.20.40 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.20.50 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.20.60 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.20.80 | Having an outside diameter exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.31.10 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.31.20 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.31.30 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.31.40 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.31.50 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.31.60 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.31.80 | Having an outside diameter exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.41.10 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.41.20 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.41.30 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.41.40 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.41.50 | Having a wall thickness less than <il>12.7 mm</il> | kg | | | |
| 7304.29.41.60 | Having a wall thickness of <il>12.7 mm</il> or more | kg | | | |
| 7304.29.41.80 | Having an outside diameter exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.50.15 | Having a wall thickness not exceeding <il>9.5 mm</il> | kg | | | |
| 7304.29.50.30 | Having a wall thickness exceeding <il>9.5 mm</il> | kg | | | |
| 7304.29.50.45 | Having an outside diameter exceeding <il>114.3 mm</il> but less than <il>215.9 mm</il> | kg | | | |
| 7304.29.50.60 | Having an outside diameter of <il>215.9 mm</il> or more but not exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.50.75 | Having an outside diameter exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.61.15 | Having a wall thickness not exceeding <il>9.5 mm</il> | kg | | | |
| 7304.29.61.30 | Having a wall thickness exceeding <il>9.5 mm</il> | kg | | | |
| 7304.29.61.45 | Having an outside diameter exceeding <il>114.3 mm</il> but less than <il>215.9 mm</il> | kg | | | |
| 7304.29.61.60 | Having an outside diameter of <il>215.9 mm</il> or more but not exceeding <il>406.4 mm</il> | kg | | | |
| 7304.29.61.75 | Having an outside diameter exceeding <il>406.4 mm</il> | kg | | | |