Tubes, pipes and hollow profiles, of cast iron
3 declarable lines
Heading 7303 covers tubes, pipes and hollow profiles made of cast iron. It is split by use and size: soil pipe, pressure pipe with an inside diameter of less than 356 mm, and other. All listed lines carry a general (MFN) rate of Free.
Products in this heading
- Cast iron soil pipe for drain, waste and vent lines
- Cast iron pressure pipe with an inside diameter under 356 mm
- Cast iron sewage pipe
- Cast iron water pipe sections
- Cast iron hollow profiles
- Cast iron pipe for gravity drainage
- Cast iron pipe sections for underground service
How to choose the right subheading
- Confirm the article is a tube, pipe or hollow profile of cast iron, not a fitting or other cast article.
- If it is soil pipe, use 7303.00.00.30.
- If it is pressure pipe, measure the inside diameter; less than 356 mm goes to 7303.00.00.60.
- Use 7303.00.00.90 for cast iron tubes, pipes or hollow profiles that are not soil pipe and not pressure pipe under 356 mm.
Often confused with
- Heading 7307Steel pipe fittings such as couplings and elbows
Fittings are classified separately from tubes and pipes.
- Heading 7304Seamless steel pipe
Heading 7304 covers seamless pipe of iron other than cast iron, or steel.
- Heading 7305Large welded steel pipe with circular cross section and external diameter over 406.4 mm
Heading 7305 covers that size and construction of steel pipe.
- Heading 7306Other welded steel pipe
Heading 7306 covers other steel tubes and pipes, not cast iron.
- Heading 7325Cast iron castings that are not tubes, pipes or hollow profiles
Other cast iron articles are classified outside heading 7303.
Frequently asked questions
What is the HTS code for cast iron soil pipe?
Cast iron soil pipe is classified under 7303.00.00.30, with a general (MFN) rate of Free.
What is the duty on cast iron pressure pipe with an inside diameter of less than 356 mm?
It falls under 7303.00.00.60 and the general (MFN) rate is Free.
How do I classify cast iron pipe that is not soil pipe or pressure pipe under 356 mm?
Use 7303.00.00.90 for other cast iron tubes, pipes and hollow profiles; the general (MFN) rate is Free.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.