7304.59.20.70
Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm
Classification path
- Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel
- Other, of circular cross section, of other alloy steel
- Other
- Other
- Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
- Other
- Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- 35%
- Unit of quantity
- kg
Related lines in heading 7304
- 7304.11.00.20Having an outside diameter not exceeding 114.3 mmFree
- 7304.11.00.50Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mmFree
- 7304.11.00.80Having an outside diameter exceeding 406.4 mmFree
- 7304.19.10.20Having an outside diameter not exceeding 114.3 mmFree
- 7304.19.10.30Having an outside diameter exceeding 114.3 mm but less than 215.9 mmFree
- 7304.19.10.45Having a wall thickness less than 12.7 mmFree
- 7304.19.10.60Having a wall thickness of 12.7 mm or moreFree
- 7304.19.10.80Having an outside diameter exceeding 406.4 mmFree
- 7304.19.50.20Having an outside diameter not exceeding 114.3 mmFree
- 7304.19.50.50Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mmFree
- 7304.19.50.80Having an outside diameter exceeding 406.4 mmFree
- 7304.22.00.30Having a wall thickness not exceeding 9.5 mmFree
About heading 7304
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel
Heading 7304 covers seamless (not welded) tubes, pipes and hollow profiles made of iron or steel other than cast iron. The heading is split first by use: line pipe for oil or gas pipelines, casing, tubing and drill pipe for oil or gas drilling, and all other tubes and pipes of circular cross section. Within each group the lines divide by material (stainless steel, iron or nonalloy steel, other alloy steel), then by outside diameter and wall thickness, and for the residual group by cold-drawn versus other and by end use such as boiler tubes.
Full guide to heading 7304Products in this heading
- Seamless stainless steel line pipe for oil or gas pipelines
- Seamless drill pipe used in oil or gas drilling
- Seamless casing and tubing for oil or gas wells
- Seamless boiler and heat exchanger tubes of nonalloy steel
- Cold-drawn seamless hollow bars of nonalloy steel
- Seamless alloy steel tubes for ball or roller bearing manufacture
- Galvanized seamless nonalloy steel pipe with outside diameter not exceeding 114.3 mm
- Seamless stainless steel tubing with outside diameter not exceeding 114.3 mm
Frequently asked questions
What is the HTS code for seamless stainless steel line pipe?
The line depends on outside diameter: 7304.11.00.20 covers stainless steel line pipe of a kind used for oil or gas pipelines with an outside diameter not exceeding 114.3 mm, at a general (MFN) rate of Free. Larger diameters go to 7304.11.00.50 or 7304.11.00.80.
What is the duty on threaded and coupled seamless stainless steel casing?
Casing of stainless steel with an outside diameter less than 215.9 mm and a wall thickness less than 12.7 mm is classified in 7304.24.30.10, at a general (MFN) rate of Free. Other diameter and wall thickness combinations have their own lines in 7304.24.30 and 7304.24.40.
How do I classify a cold-drawn seamless nonalloy steel boiler tube?
Cold-drawn or cold-rolled nonalloy steel tube suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters is classified in 7304.31.60.10, at a general (MFN) rate of Free. If the tube is not cold-drawn, the boiler tube lines under 7304.39.00 apply instead, split by outside diameter.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.