| HTS Number | Description | Unit of Quantity | General Rate of Duty | Details | 
| 7304 2920.30 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2920.40 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2920.50 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2920.60 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2920.80 | Having an outside diameter exceeding 406.4 mm | kg |  | More | 
| 7304 2931 | Threaded or coupled |  | Free |  | 
| 7304 2931.10 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2931.20 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2931.30 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2931.40 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2931.50 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2931.60 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2931.80 | Having an outside diameter exceeding 406.4 mm | kg |  | More | 
| 7304 2941 | Other |  | Free |  | 
| 7304 2941.10 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2941.20 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2941.30 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2941.40 | Having a wall thickness of 12.7 mm or more | kg |  | More | 
| 7304 2941.50 | Having a wall thickness less than 12.7 mm | kg |  | More | 
| 7304 2941.60 | Having a wall thickness of 12.7 mm or more | kg |  | More |