| 7304.19.10 | 60 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.19.10 | 80 | Having an outside diameter exceeding 406.4 mm | kg | | | |
| 7304.19.50 | | Of other alloy steel | | Free | | 35% |
| 7304.19.50 | 20 | Having an outside diameter not exceeding 114.3 mm | kg | | | |
| 7304.19.50 | 50 | Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | kg | | | |
| 7304.19.50 | 80 | Having an outside diameter exceeding 406.4 mm | kg | | | |
| 7304.22.00 | | Drill pipe of stainless steel | | Free | | 35% |
| 7304.22.00 | 30 | Having a wall thickness not exceeding 9.5 mm | kg | | | |
| 7304.22.00 | 45 | Having a wall thickness exceeding 9.5 mm | kg | | | |
| 7304.22.00 | 60 | Having an outside diameter exceeding 168.3 mm | kg | | | |
| 7304.23.30 | 00 | Of iron or nonalloy steel | kg | Free | | 25% |
| 7304.23.60 | | Of alloy steel | | Free | | 35% |
| 7304.23.60 | 30 | Having a wall thickness not exceeding 9.5 mm | kg | | | |
| 7304.23.60 | 45 | Having a wall thickness exceeding 9.5 mm | kg | | | |
| 7304.23.60 | 60 | Having an outside diameter exceeding 168.3 mm | kg | | | |
| 7304.24.30 | 10 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.24.30 | 20 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.24.30 | 30 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.24.30 | 40 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.24.30 | 50 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.24.30 | 60 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.24.30 | 80 | Having an outside diameter exceeding 406.4 mm | kg | | | |
| 7304.24.40 | 10 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.24.40 | 20 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.24.40 | 30 | Having a wall thickness less than 12.7 mm | kg | | | |
