# HTS 7304: Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: https://geopax.app/tariffs/catalog/73/7304 Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=7304). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator ## 7304: Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: | Code | Description | General | Special | Column 2 | Units | | --- | --- | --- | --- | --- | --- | | 7304 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: | | | | | | | Line pipe of a kind used for oil or gas pipelines: | | | | | | 7304.11.00 | Of stainless steel | Free | | 35% | | | 7304.11.00.20 | Having an outside diameter not exceeding 114.3 mm | Free | | 35% | kg | | 7304.11.00.50 | Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | Free | | 35% | kg | | 7304.11.00.80 | Having an outside diameter exceeding 406.4 mm | Free | | 35% | kg | | 7304.19 | Other: | | | | | | 7304.19.10 | Of iron or nonalloy steel | Free | | 25% | | | 7304.19.10.20 | Having an outside diameter not exceeding 114.3 mm | Free | | 25% | kg | | 7304.19.10.30 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | Free | | 25% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm: | Free | | 25% | | | 7304.19.10.45 | Having a wall thickness less than 12.7 mm | Free | | 25% | kg | | 7304.19.10.60 | Having a wall thickness of 12.7 mm or more | Free | | 25% | kg | | 7304.19.10.80 | Having an outside diameter exceeding 406.4 mm | Free | | 25% | kg | | 7304.19.50 | Of other alloy steel | Free | | 35% | | | 7304.19.50.20 | Having an outside diameter not exceeding 114.3 mm | Free | | 35% | kg | | 7304.19.50.50 | Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | Free | | 35% | kg | | 7304.19.50.80 | Having an outside diameter exceeding 406.4 mm | Free | | 35% | kg | | | Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: | | | | | | 7304.22.00 | Drill pipe of stainless steel | Free | | 35% | | | | Having an outside diameter not exceeding 168.3 mm: | Free | | 35% | | | 7304.22.00.30 | Having a wall thickness not exceeding 9.5 mm | Free | | 35% | kg | | 7304.22.00.45 | Having a wall thickness exceeding 9.5 mm | Free | | 35% | kg | | 7304.22.00.60 | Having an outside diameter exceeding 168.3 mm | Free | | 35% | kg | | 7304.23 | Other drill pipe: | | | | | | 7304.23.30.00 | Of iron or nonalloy steel | Free | | 25% | kg | | 7304.23.60 | Of alloy steel | Free | | 35% | | | | Having an outside diameter not exceeding 168.3 mm: | Free | | 35% | | | 7304.23.60.30 | Having a wall thickness not exceeding 9.5 mm | Free | | 35% | kg | | 7304.23.60.45 | Having a wall thickness exceeding 9.5 mm | Free | | 35% | kg | | 7304.23.60.60 | Having an outside diameter exceeding 168.3 mm | Free | | 35% | kg | | 7304.24 | Other, of stainless steel: | | | | | | | Casing: | | | | | | 7304.24.30 | Threaded or coupled | Free | | 28% | | | | Having an outside diameter less than 215.9 mm: | Free | | 28% | | | 7304.24.30.10 | Having a wall thickness less than 12.7 mm | Free | | 28% | kg | | 7304.24.30.20 | Having a wall thickness of 12.7 mm or more | Free | | 28% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | Free | | 28% | | | 7304.24.30.30 | Having a wall thickness less than 12.7 mm | Free | | 28% | kg | | 7304.24.30.40 | Having a wall thickness of 12.7 mm or more | Free | | 28% | kg | | 7304.24.30.45 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm | Free | | 28% | kg | | 7304.24.30.80 | Having an outside diameter exceeding 406.4 mm | Free | | 28% | kg | | 7304.24.40 | Other | Free | | 8.5% | | | | Having an outside diameter less than 215.9 mm: | Free | | 8.5% | | | 7304.24.40.10 | Having a wall thickness less than 12.7 mm | Free | | 8.5% | kg | | 7304.24.40.20 | Having a wall thickness of 12.7 mm or more | Free | | 8.5% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | Free | | 8.5% | | | 7304.24.40.30 | Having a wall thickness less than 12.7 mm | Free | | 8.5% | kg | | 7304.24.40.40 | Having a wall thickness of 12.7 mm or more | Free | | 8.5% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 8.5% | | | 7304.24.40.50 | Having a wall thickness less than 12.7 mm | Free | | 8.5% | kg | | 7304.24.40.60 | Having a wall thickness of 12.7 mm or more | Free | | 8.5% | kg | | 7304.24.40.80 | Having an outside diameter exceeding 406.4 mm | Free | | 8.5% | kg | | 7304.24.60 | Tubing | Free | | 35% | | | | Having an outside diameter not exceeding 114.3 mm: | Free | | 35% | | | 7304.24.60.15 | Having a wall thickness not exceeding 9.5 mm | Free | | 35% | kg | | 7304.24.60.30 | Having a wall thickness exceeding 9.5 mm | Free | | 35% | kg | | 7304.24.60.45 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | Free | | 35% | kg | | 7304.24.60.60 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm | Free | | 35% | kg | | 7304.24.60.75 | Having an outside diameter exceeding 406.4 mm | Free | | 35% | kg | | 7304.29 | Other: | | | | | | | Casing: | | | | | | | Of iron or nonalloy steel: | | | | | | 7304.29.10 | Threaded or coupled | Free | | 20% | | | | Having an outside diameter less than 215.9 mm: | Free | | 20% | | | 7304.29.10.10 | Having a wall thickness less than 12.7 mm | Free | | 20% | kg | | 7304.29.10.20 | Having a wall thickness of 12.7 mm or more | Free | | 20% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | Free | | 20% | | | 7304.29.10.30 | Having a wall thickness less than 12.7 mm | Free | | 20% | kg | | 7304.29.10.40 | Having a wall thickness of 12.7 mm or more | Free | | 20% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 20% | | | 7304.29.10.50 | Having a wall thickness less than 12.7 mm | Free | | 20% | kg | | 7304.29.10.60 | Having a wall thickness of 12.7 mm or more | Free | | 20% | kg | | 7304.29.10.80 | Having an outside diameter exceeding 406.4 mm | Free | | 20% | kg | | 7304.29.20 | Other | Free | | 1% | | | | Having an outside diameter less than 215.9 mm: | Free | | 1% | | | 7304.29.20.10 | Having a wall thickness less than 12.7 mm | Free | | 1% | kg | | 7304.29.20.20 | Having a wall thickness of 12.7 mm or more | Free | | 1% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | Free | | 1% | | | 7304.29.20.30 | Having a wall thickness less than 12.7 mm | Free | | 1% | kg | | 7304.29.20.40 | Having a wall thickness of 12.7 mm or more | Free | | 1% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 1% | | | 7304.29.20.50 | Having a wall thickness less than 12.7 mm | Free | | 1% | kg | | 7304.29.20.60 | Having a wall thickness of 12.7 mm or more | Free | | 1% | kg | | 7304.29.20.80 | Having an outside diameter exceeding 406.4 mm | Free | | 1% | kg | | | Of other alloy steel: | | | | | | 7304.29.31 | Threaded or coupled | Free | | 28% | | | | Having an outside diameter less than 215.9 mm: | Free | | 28% | | | 7304.29.31.10 | Having a wall thickness less than 12.7 mm | Free | | 28% | kg | | 7304.29.31.20 | Having a wall thickness of 12.7 mm or more | Free | | 28% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | Free | | 28% | | | 7304.29.31.30 | Having a wall thickness less than 12.7 mm | Free | | 28% | kg | | 7304.29.31.40 | Having a wall thickness of 12.7 mm or more | Free | | 28% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 28% | | | 7304.29.31.50 | Having a wall thickness less than 12.7 mm | Free | | 28% | kg | | 7304.29.31.60 | Having a wall thickness of 12.7 mm or more | Free | | 28% | kg | | 7304.29.31.80 | Having an outside diameter exceeding 406.4 mm | Free | | 28% | kg | | 7304.29.41 | Other | Free | | 8.5% | | | | Having an outside diameter less than 215.9 mm: | Free | | 8.5% | | | 7304.29.41.10 | Having a wall thickness less than 12.7 mm | Free | | 8.5% | kg | | 7304.29.41.20 | Having a wall thickness of 12.7 mm or more | Free | | 8.5% | kg | | | Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: | Free | | 8.5% | | | 7304.29.41.30 | Having a wall thickness less than 12.7 mm | Free | | 8.5% | kg | | 7304.29.41.40 | Having a wall thickness of 12.7 mm or more | Free | | 8.5% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 8.5% | | | 7304.29.41.50 | Having a wall thickness less than 12.7 mm | Free | | 8.5% | kg | | 7304.29.41.60 | Having a wall thickness of 12.7 mm or more | Free | | 8.5% | kg | | 7304.29.41.80 | Having an outside diameter exceeding 406.4 mm | Free | | 8.5% | kg | | | Tubing: | | | | | | 7304.29.50 | Of iron or nonalloy steel | Free | | 25% | | | | Having an outside diameter not exceeding 114.3 mm: | Free | | 25% | | | 7304.29.50.15 | Having a wall thickness not exceeding 9.5 mm | Free | | 25% | kg | | 7304.29.50.30 | Having a wall thickness exceeding 9.5 mm | Free | | 25% | kg | | 7304.29.50.45 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | Free | | 25% | kg | | 7304.29.50.60 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm | Free | | 25% | kg | | 7304.29.50.75 | Having an outside diameter exceeding 406.4 mm | Free | | 25% | kg | | 7304.29.61 | Of other alloy steel | Free | | 35% | | | | Having an outside diameter not exceeding 114.3 mm: | Free | | 35% | | | 7304.29.61.15 | Having a wall thickness not exceeding 9.5 mm | Free | | 35% | kg | | 7304.29.61.30 | Having a wall thickness exceeding 9.5 mm | Free | | 35% | kg | | 7304.29.61.45 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | Free | | 35% | kg | | 7304.29.61.60 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm | Free | | 35% | kg | | 7304.29.61.75 | Having an outside diameter exceeding 406.4 mm | Free | | 35% | kg | | | Other, of circular cross section, of iron or nonalloy steel: | | | | | | 7304.31 | Cold-drawn or cold-rolled (cold-reduced): | | | | | | 7304.31.30.00 | Hollow bars | Free | | 22% | kg | | 7304.31.60 | Other | Free | | 25% | | | 7304.31.60.10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Free | | 25% | kg | | 7304.31.60.50 | Other | Free | | 25% | kg | | 7304.39.00 | Other | Free | | 25% | | | | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters: | Free | | 25% | | | 7304.39.00.02 | Having an outside diameter less than 38.1 mm | Free | | 25% | kg | | 7304.39.00.04 | Having an outside diameter of 38.1 mm or more but less than 190.5 mm | Free | | 25% | kg | | 7304.39.00.06 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm | Free | | 25% | kg | | 7304.39.00.08 | Having an outside diameter exceeding 285.8 mm | Free | | 25% | kg | | | Other: | Free | | 25% | | | 7304.39.00.16 | Galvanized, having an outside diameter not exceeding 114.3 mm | Free | | 25% | kg | | | Other: | Free | | 25% | | | 7304.39.00.20 | Having an outside diameter less than 38.1 mm | Free | | 25% | kg | | | Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm: | Free | | 25% | | | 7304.39.00.24 | Having a wall thickness less than 6.4 mm | Free | | 25% | kg | | 7304.39.00.28 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | Free | | 25% | kg | | 7304.39.00.32 | Having a wall thickness exceeding 12.7 mm | Free | | 25% | kg | | | Having an outside diameter exceeding 114.3 mm but less than 190.5 mm: | Free | | 25% | | | 7304.39.00.36 | Having a wall thickness less than 12.7 mm | Free | | 25% | kg | | 7304.39.00.40 | Having a wall thickness of 12.7 mm or more but less than 19 mm | Free | | 25% | kg | | 7304.39.00.44 | Having a wall thickness of 19 mm or more | Free | | 25% | kg | | | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm: | Free | | 25% | | | 7304.39.00.48 | Having a wall thickness less than 12.7 mm | Free | | 25% | kg | | 7304.39.00.52 | Having a wall thickness of 12.7 mm or more but less than 19 mm | Free | | 25% | kg | | 7304.39.00.56 | Having a wall thickness of 19 mm or more | Free | | 25% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 25% | | | 7304.39.00.62 | Having a wall thickness less than 12.7 mm | Free | | 25% | kg | | 7304.39.00.68 | Having a wall thickness of 12.7 mm or more but less than 19 mm | Free | | 25% | kg | | 7304.39.00.72 | Having a wall thickness of 19 mm or more | Free | | 25% | kg | | | Having an outside diameter exceeding 406.4 mm: | Free | | 25% | | | 7304.39.00.76 | Having a wall thickness less than 19 mm | Free | | 25% | kg | | 7304.39.00.80 | Having a wall thickness of 19 mm or more | Free | | 25% | kg | | | Other, of circular cross section, of stainless steel: | | | | | | 7304.41 | Cold-drawn or cold-rolled (cold-reduced): | | | | | | 7304.41.30 | Of an external diameter of less than 19 mm | Free | | 36% | | | 7304.41.30.05 | Of high-nickel alloy steel | Free | | 36% | kg | | | Other: | Free | | 36% | | | 7304.41.30.15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Free | | 36% | kg | | 7304.41.30.45 | Other | Free | | 36% | kg | | 7304.41.60 | Other | Free | | 36% | | | 7304.41.60.05 | Of high-nickel alloy steel | Free | | 36% | kg | | | Other: | Free | | 36% | | | 7304.41.60.15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Free | | 36% | kg | | 7304.41.60.45 | Other | Free | | 36% | kg | | 7304.49.00 | Other | Free | | 36% | | | 7304.49.00.05 | Of high-nickel alloy steel | Free | | 36% | kg | | | Other: | Free | | 36% | | | 7304.49.00.15 | Hollow bars | Free | | 36% | kg | | | Other: | Free | | 36% | | | 7304.49.00.45 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Free | | 36% | kg | | 7304.49.00.60 | Other | Free | | 36% | kg | | | Other, of circular cross section, of other alloy steel: | | | | | | 7304.51 | Cold-drawn or cold-rolled (cold-reduced): | | | | | | 7304.51.10.00 | Suitable for use in the manufacture of ball or roller bearings | Free | | 34% | kg | | 7304.51.50 | Other | Free | | 35% | | | 7304.51.50.05 | Of high-nickel alloy steel | Free | | 35% | kg | | | Other: | Free | | 35% | | | | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters: | Free | | 35% | | | 7304.51.50.15 | Of heat-resisting steel | Free | | 35% | kg | | 7304.51.50.45 | Other | Free | | 35% | kg | | 7304.51.50.60 | Other | Free | | 35% | kg | | 7304.59 | Other: | | | | | | 7304.59.10.00 | Suitable for use in the manufacture of ball or roller bearings | Free | | 34% | kg | | | Other: | | | | | | 7304.59.20 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Free | | 35% | | | 7304.59.20.30 | Of heat-resisting steel | Free | | 35% | kg | | | Other: | Free | | 35% | | | 7304.59.20.40 | Having an outside diameter less than 38.1 mm | Free | | 35% | kg | | 7304.59.20.45 | Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm | Free | | 35% | kg | | 7304.59.20.55 | Having an outside diameter exceeding 114.3 mm but less than 190.5 mm | Free | | 35% | kg | | 7304.59.20.60 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm | Free | | 35% | kg | | 7304.59.20.70 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm | Free | | 35% | kg | | 7304.59.20.80 | Having an outside diameter exceeding 406.4 mm | Free | | 35% | kg | | | Other: | | | | | | 7304.59.60.00 | Of heat-resisting steel | Free | | 36% | kg | | 7304.59.80 | Other | Free | | 35% | | | 7304.59.80.10 | Having an outside diameter less than 38.1 mm | Free | | 35% | kg | | | Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm: | Free | | 35% | | | 7304.59.80.15 | Having a wall thickness less than 6.4 mm | Free | | 35% | kg | | 7304.59.80.20 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | Free | | 35% | kg | | 7304.59.80.25 | Having a wall thickness exceeding 12.7 mm | Free | | 35% | kg | | | Having an outside diameter exceeding 114.3 mm but less than 190.5 mm: | Free | | 35% | | | 7304.59.80.30 | Having a wall thickness less than 12.7 mm | Free | | 35% | kg | | 7304.59.80.35 | Having a wall thickness of 12.7 mm or more but less than 19 mm | Free | | 35% | kg | | 7304.59.80.40 | Having a wall thickness of 19 mm or more | Free | | 35% | kg | | | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm: | Free | | 35% | | | 7304.59.80.45 | Having a wall thickness less than 12.7 mm | Free | | 35% | kg | | 7304.59.80.50 | Having a wall thickness of 12.7 mm or more but less than 19 mm | Free | | 35% | kg | | 7304.59.80.55 | Having a wall thickness of 19 mm or more | Free | | 35% | kg | | | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: | Free | | 35% | | | 7304.59.80.60 | Having a wall thickness less than 12.7 mm | Free | | 35% | kg | | 7304.59.80.65 | Having a wall thickness of 12.7 mm or more but less than 19 mm | Free | | 35% | kg | | 7304.59.80.70 | Having a wall thickness of 19 mm or more | Free | | 35% | kg | | 7304.59.80.80 | Having an outside diameter exceeding 406.4 mm | Free | | 35% | kg | | 7304.90 | Other: | | | | | | | Having a wall thickness of 4 mm or more: | | | | | | 7304.90.10.00 | Of iron or nonalloy steel | Free | | 1% | kg | | 7304.90.30.00 | Of alloy steel | Free | | 8.5% | kg | | | Having a wall thickness of less than 4 mm: | | | | | | 7304.90.50.00 | Of iron or nonalloy steel | Free | | 25% | kg | | 7304.90.70.00 | Of alloy steel | Free | | 35% | kg |