Heading 7304: Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel
Every line of heading 7304 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel
Chapter 73: Articles of iron or steel. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 7304.11.00 | Of stainless steel | Free |
| 7304.11.00.20 | Having an outside diameter not exceeding 114.3 mm | |
| 7304.11.00.50 | Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | |
| 7304.11.00.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.19 | Other: | |
| 7304.19.10 | Of iron or nonalloy steel | Free |
| 7304.19.10.20 | Having an outside diameter not exceeding 114.3 mm | |
| 7304.19.10.30 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | |
| 7304.19.10.45 | Having a wall thickness less than 12.7 mm | |
| 7304.19.10.60 | Having a wall thickness of 12.7 mm or more | |
| 7304.19.10.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.19.50 | Of other alloy steel | Free |
| 7304.19.50.20 | Having an outside diameter not exceeding 114.3 mm | |
| 7304.19.50.50 | Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | |
| 7304.19.50.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.22.00 | Drill pipe of stainless steel | Free |
| 7304.22.00.30 | Having a wall thickness not exceeding 9.5 mm | |
| 7304.22.00.45 | Having a wall thickness exceeding 9.5 mm | |
| 7304.22.00.60 | Having an outside diameter exceeding 168.3 mm | |
| 7304.23 | Other drill pipe: | |
| 7304.23.30.00 | Of iron or nonalloy steel | Free |
| 7304.23.60 | Of alloy steel | Free |
| 7304.23.60.30 | Having a wall thickness not exceeding 9.5 mm | |
| 7304.23.60.45 | Having a wall thickness exceeding 9.5 mm | |
| 7304.23.60.60 | Having an outside diameter exceeding 168.3 mm | |
| 7304.24 | Other, of stainless steel: | |
| 7304.24.30 | Threaded or coupled | Free |
| 7304.24.30.10 | Having a wall thickness less than 12.7 mm | |
| 7304.24.30.20 | Having a wall thickness of 12.7 mm or more | |
| 7304.24.30.30 | Having a wall thickness less than 12.7 mm | |
| 7304.24.30.40 | Having a wall thickness of 12.7 mm or more | |
| 7304.24.30.45 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm | |
| 7304.24.30.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.24.40 | Other | Free |
| 7304.24.40.10 | Having a wall thickness less than 12.7 mm | |
| 7304.24.40.20 | Having a wall thickness of 12.7 mm or more | |
| 7304.24.40.30 | Having a wall thickness less than 12.7 mm | |
| 7304.24.40.40 | Having a wall thickness of 12.7 mm or more | |
| 7304.24.40.50 | Having a wall thickness less than 12.7 mm | |
| 7304.24.40.60 | Having a wall thickness of 12.7 mm or more | |
| 7304.24.40.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.24.60 | Tubing | Free |
| 7304.24.60.15 | Having a wall thickness not exceeding 9.5 mm | |
| 7304.24.60.30 | Having a wall thickness exceeding 9.5 mm | |
| 7304.24.60.45 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | |
| 7304.24.60.60 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm | |
| 7304.24.60.75 | Having an outside diameter exceeding 406.4 mm | |
| 7304.29 | Other: | |
| 7304.29.10 | Threaded or coupled | Free |
| 7304.29.10.10 | Having a wall thickness less than 12.7 mm | |
| 7304.29.10.20 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.10.30 | Having a wall thickness less than 12.7 mm | |
| 7304.29.10.40 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.10.50 | Having a wall thickness less than 12.7 mm | |
| 7304.29.10.60 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.10.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.29.20 | Other | Free |
| 7304.29.20.10 | Having a wall thickness less than 12.7 mm | |
| 7304.29.20.20 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.20.30 | Having a wall thickness less than 12.7 mm | |
| 7304.29.20.40 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.20.50 | Having a wall thickness less than 12.7 mm | |
| 7304.29.20.60 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.20.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.29.31 | Threaded or coupled | Free |
| 7304.29.31.10 | Having a wall thickness less than 12.7 mm | |
| 7304.29.31.20 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.31.30 | Having a wall thickness less than 12.7 mm | |
| 7304.29.31.40 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.31.50 | Having a wall thickness less than 12.7 mm | |
| 7304.29.31.60 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.31.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.29.41 | Other | Free |
| 7304.29.41.10 | Having a wall thickness less than 12.7 mm | |
| 7304.29.41.20 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.41.30 | Having a wall thickness less than 12.7 mm | |
| 7304.29.41.40 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.41.50 | Having a wall thickness less than 12.7 mm | |
| 7304.29.41.60 | Having a wall thickness of 12.7 mm or more | |
| 7304.29.41.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.29.50 | Of iron or nonalloy steel | Free |
| 7304.29.50.15 | Having a wall thickness not exceeding 9.5 mm | |
| 7304.29.50.30 | Having a wall thickness exceeding 9.5 mm | |
| 7304.29.50.45 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | |
| 7304.29.50.60 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm | |
| 7304.29.50.75 | Having an outside diameter exceeding 406.4 mm | |
| 7304.29.61 | Of other alloy steel | Free |
| 7304.29.61.15 | Having a wall thickness not exceeding 9.5 mm | |
| 7304.29.61.30 | Having a wall thickness exceeding 9.5 mm | |
| 7304.29.61.45 | Having an outside diameter exceeding 114.3 mm but less than 215.9 mm | |
| 7304.29.61.60 | Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm | |
| 7304.29.61.75 | Having an outside diameter exceeding 406.4 mm | |
| 7304.31 | Cold-drawn or cold-rolled (cold-reduced): | |
| 7304.31.30.00 | Hollow bars | Free |
| 7304.31.60 | Other | Free |
| 7304.31.60.10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | |
| 7304.31.60.50 | Other | |
| 7304.39.00 | Other | Free |
| 7304.39.00.02 | Having an outside diameter less than 38.1 mm | |
| 7304.39.00.04 | Having an outside diameter of 38.1 mm or more but less than 190.5 mm | |
| 7304.39.00.06 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm | |
| 7304.39.00.08 | Having an outside diameter exceeding 285.8 mm | |
| 7304.39.00.16 | Galvanized, having an outside diameter not exceeding 114.3 mm | |
| 7304.39.00.20 | Having an outside diameter less than 38.1 mm | |
| 7304.39.00.24 | Having a wall thickness less than 6.4 mm | |
| 7304.39.00.28 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | |
| 7304.39.00.32 | Having a wall thickness exceeding 12.7 mm | |
| 7304.39.00.36 | Having a wall thickness less than 12.7 mm | |
| 7304.39.00.40 | Having a wall thickness of 12.7 mm or more but less than 19 mm | |
| 7304.39.00.44 | Having a wall thickness of 19 mm or more | |
| 7304.39.00.48 | Having a wall thickness less than 12.7 mm | |
| 7304.39.00.52 | Having a wall thickness of 12.7 mm or more but less than 19 mm | |
| 7304.39.00.56 | Having a wall thickness of 19 mm or more | |
| 7304.39.00.62 | Having a wall thickness less than 12.7 mm | |
| 7304.39.00.68 | Having a wall thickness of 12.7 mm or more but less than 19 mm | |
| 7304.39.00.72 | Having a wall thickness of 19 mm or more | |
| 7304.39.00.76 | Having a wall thickness less than 19 mm | |
| 7304.39.00.80 | Having a wall thickness of 19 mm or more | |
| 7304.41 | Cold-drawn or cold-rolled (cold-reduced): | |
| 7304.41.30 | Of an external diameter of less than 19 mm | Free |
| 7304.41.30.05 | Of high-nickel alloy steel | |
| 7304.41.30.15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | |
| 7304.41.30.45 | Other | |
| 7304.41.60 | Other | Free |
| 7304.41.60.05 | Of high-nickel alloy steel | |
| 7304.41.60.15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | |
| 7304.41.60.45 | Other | |
| 7304.49.00 | Other | Free |
| 7304.49.00.05 | Of high-nickel alloy steel | |
| 7304.49.00.15 | Hollow bars | |
| 7304.49.00.45 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | |
| 7304.49.00.60 | Other | |
| 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 |
| 7304.51.50 | Other | Free |
| 7304.51.50.05 | Of high-nickel alloy steel | |
| 7304.51.50.15 | Of heat-resisting steel | |
| 7304.51.50.45 | Other | |
| 7304.51.50.60 | Other | |
| 7304.59 | Other: | |
| 7304.59.10.00 | Suitable for use in the manufacture of ball or roller bearings | Free |
| 7304.59.20 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | Free |
| 7304.59.20.30 | Of heat-resisting steel | |
| 7304.59.20.40 | Having an outside diameter less than 38.1 mm | |
| 7304.59.20.45 | Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm | |
| 7304.59.20.55 | Having an outside diameter exceeding 114.3 mm but less than 190.5 mm | |
| 7304.59.20.60 | Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm | |
| 7304.59.20.70 | Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm | |
| 7304.59.20.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.59.60.00 | Of heat-resisting steel | Free |
| 7304.59.80 | Other | Free |
| 7304.59.80.10 | Having an outside diameter less than 38.1 mm | |
| 7304.59.80.15 | Having a wall thickness less than 6.4 mm | |
| 7304.59.80.20 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | |
| 7304.59.80.25 | Having a wall thickness exceeding 12.7 mm | |
| 7304.59.80.30 | Having a wall thickness less than 12.7 mm | |
| 7304.59.80.35 | Having a wall thickness of 12.7 mm or more but less than 19 mm | |
| 7304.59.80.40 | Having a wall thickness of 19 mm or more | |
| 7304.59.80.45 | Having a wall thickness less than 12.7 mm | |
| 7304.59.80.50 | Having a wall thickness of 12.7 mm or more but less than 19 mm | |
| 7304.59.80.55 | Having a wall thickness of 19 mm or more | |
| 7304.59.80.60 | Having a wall thickness less than 12.7 mm | |
| 7304.59.80.65 | Having a wall thickness of 12.7 mm or more but less than 19 mm | |
| 7304.59.80.70 | Having a wall thickness of 19 mm or more | |
| 7304.59.80.80 | Having an outside diameter exceeding 406.4 mm | |
| 7304.90 | Other: | |
| 7304.90.10.00 | Of iron or nonalloy steel | Free |
| 7304.90.30.00 | Of alloy steel | Free |
| 7304.90.50.00 | Of iron or nonalloy steel | Free |
| 7304.90.70.00 | Of alloy steel | Free |
Public records · unclaimed listings
U.S. manufacturers in this industry, from public records
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Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 7304 has 25 of them; the first 12 are below. Schedule B lookup →
- 7304.11.0000LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES, SEAMLESS, OF STAINLESS STEEL
- 7304.19.1020LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES, SEAMLESS, OF IRON (NONCAST) OR NONALLOY STEEL, WITH AN OUTSIDE DIAMETER NOT EXCEEDING 114.3 MM
- 7304.19.1050LINE PIPE FOR OIL OR GAS PIPELINES, SEAMLESS, IRON (NONCAST) OR NONALLOY STEEL, WITH OUTSIDE DIAMETER OVER 114.3 MM BUT NOT OVER 406.4 MM
- 7304.19.1080LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES, SEAMLESS, OF IRON (NONCAST) OR NONALLOY STEEL, WITH AN OUTSIDE DIAMETER EXCEEDING 406.4 MM
- 7304.19.5020LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES, SEAMLESS, OF OTHER ALLOY STEEL, NOT STAINLESS, WITH AN OUTSIDE DIAMETER NOT EXCEEDING 114.3 MM
- 7304.19.5050LINE PIPE, USED FOR OIL OR GAS PIPELINES, SEAMLESS, OF OTHER ALLOY STEEL, NOT STAINLESS, WITH AN OUTSIDE DIAMETER >114.3 MM, BUT <406.4 MM
- 7304.19.5080LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES, SEAMLESS, OF ALLOY STEEL, NOT STAINLESS, WITH AN OUTSIDE DIAMETER EXCEEDING 406.4 MM
- 7304.22.0000OIL WELL DRILL PIPE, OF STAINLESS STEEL
- 7304.23.3000OIL WELL DRILL PIPE, OF IRON OR NONALLOY STEEL
- 7304.23.6000OIL WELL DRILL PIPE, OF ALLOY STEEL OTHER THAN STAINLESS STEEL
- 7304.24.1000OIL WELL CASING OF STAINLESS STEEL
- 7304.24.6000OIL WELL TUBING OF STAINLESS STEEL
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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