Home HTS codes Chapter 73 7304 Chapter 73 · HTS release 2026HTSRev21
HTS 7304 Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steelBase rates and the additional US duties for imports from the main origins on entry date 2026-10-09, from the HTS Calculator duty engine.
Base rate (column 1 general) Free
Additional duty, main origins 50–75%
Statistical lines 139
Entry date shown 2026-10-09 (dataset 1.0.0)
Additional duties for the main origins
Additional duties on 2026-10-09 Origin Additional duty Measures China 57.5– 75%Section 232, Section 301 Mexico 50% Section 232, Section 301 Canada 50% Section 232, Section 301 Vietnam 50% Section 232, Section 301 Germany 50% Section 232, Section 301
Range of the Chapter 99 duties (percent of customs value) across the lines of this heading. A range means the result differs between lines or depends on facts about the goods; an asterisk marks lines whose duty also depends on a specific (per unit) base rate. Other origins (Japan, South Korea, Taiwan, India, United Kingdom and any other country): in the calculator and the API.
Chapter 99 headings on these lines 9903.05.90 Section 3019903.82.02 Section 2329903.88.15 Section 3019903.91.01 Section 301
Every line, every origin, with citations
This page sums heading 7304 up. The duty for one line, origin and date comes from the duty engine:
Base rate plus each Chapter 99 line, in percent and in dollars Citations to the Federal Register, CBP and the USITC, with the quoted text The lines considered and not applied, and why Any origin, any entry date from 2025-01-01 to 2026-10-09 Get a free API key
10 free calculations a day without a key. With a free key: 250 duty stacks a month by API. Duty Stack docs .
Lines in this heading
The 139 statistical lines of heading 7304
Each code opens the free calculator for that line on 2026-10-09: base rate, every Chapter 99 line with its citations, and the duty in dollars.
7304.11.00.20 … › Of stainless steel › Having an outside diameter not exceeding 114.3 mm 7304.11.00.50 … › Of stainless steel › Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm 7304.11.00.80 … › Of stainless steel › Having an outside diameter exceeding 406.4 mm 7304.19.10.20 … › Of iron or nonalloy steel › Having an outside diameter not exceeding 114.3 mm 7304.19.10.30 … › Of iron or nonalloy steel › Having an outside diameter exceeding 114.3 mm but less than 215.9 mm 7304.19.10.45 … › Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm › Having a wall thickness less… 7304.19.10.60 … › Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm › Having a wall thickness of… 7304.19.10.80 … › Of iron or nonalloy steel › Having an outside diameter exceeding 406.4 mm 7304.19.50.20 … › Of other alloy steel › Having an outside diameter not exceeding 114.3 mm 7304.19.50.50 … › Of other alloy steel › Having an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm 7304.19.50.80 … › Of other alloy steel › Having an outside diameter exceeding 406.4 mm 7304.22.00.30 … › Having an outside diameter not exceeding 168.3 mm › Having a wall thickness not exceeding 9.5 mm 7304.22.00.45 … › Having an outside diameter not exceeding 168.3 mm › Having a wall thickness exceeding 9.5 mm 7304.22.00.60 … › Drill pipe of stainless steel › Having an outside diameter exceeding 168.3 mm 7304.23.30.00 … › Other drill pipe › Of iron or nonalloy steel 7304.23.60.30 … › Having an outside diameter not exceeding 168.3 mm › Having a wall thickness not exceeding 9.5 mm 7304.23.60.45 … › Having an outside diameter not exceeding 168.3 mm › Having a wall thickness exceeding 9.5 mm 7304.23.60.60 … › Of alloy steel › Having an outside diameter exceeding 168.3 mm 7304.24.30.10 … › Having an outside diameter less than 215.9 mm › Having a wall thickness less than 12.7 mm 7304.24.30.20 … › Having an outside diameter less than 215.9 mm › Having a wall thickness of 12.7 mm or more 7304.24.30.30 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.24.30.40 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.24.30.45 … › Threaded or coupled › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm 7304.24.30.80 … › Threaded or coupled › Having an outside diameter exceeding 406.4 mm 7304.24.40.10 … › Having an outside diameter less than 215.9 mm › Having a wall thickness less than 12.7 mm 7304.24.40.20 … › Having an outside diameter less than 215.9 mm › Having a wall thickness of 12.7 mm or more 7304.24.40.30 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.24.40.40 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.24.40.50 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.24.40.60 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.24.40.80 … › Other › Having an outside diameter exceeding 406.4 mm 7304.24.60.15 … › Having an outside diameter not exceeding 114.3 mm › Having a wall thickness not exceeding 9.5 mm 7304.24.60.30 … › Having an outside diameter not exceeding 114.3 mm › Having a wall thickness exceeding 9.5 mm 7304.24.60.45 … › Tubing › Having an outside diameter exceeding 114.3 mm but less than 215.9 mm 7304.24.60.60 … › Tubing › Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm 7304.24.60.75 … › Tubing › Having an outside diameter exceeding 406.4 mm 7304.29.10.10 … › Having an outside diameter less than 215.9 mm › Having a wall thickness less than 12.7 mm 7304.29.10.20 … › Having an outside diameter less than 215.9 mm › Having a wall thickness of 12.7 mm or more 7304.29.10.30 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.29.10.40 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.29.10.50 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.29.10.60 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.29.10.80 … › Threaded or coupled › Having an outside diameter exceeding 406.4 mm 7304.29.20.10 … › Having an outside diameter less than 215.9 mm › Having a wall thickness less than 12.7 mm 7304.29.20.20 … › Having an outside diameter less than 215.9 mm › Having a wall thickness of 12.7 mm or more 7304.29.20.30 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.29.20.40 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.29.20.50 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.29.20.60 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.29.20.80 … › Other › Having an outside diameter exceeding 406.4 mm 7304.29.31.10 … › Having an outside diameter less than 215.9 mm › Having a wall thickness less than 12.7 mm 7304.29.31.20 … › Having an outside diameter less than 215.9 mm › Having a wall thickness of 12.7 mm or more 7304.29.31.30 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.29.31.40 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.29.31.50 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.29.31.60 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.29.31.80 … › Threaded or coupled › Having an outside diameter exceeding 406.4 mm 7304.29.41.10 … › Having an outside diameter less than 215.9 mm › Having a wall thickness less than 12.7 mm 7304.29.41.20 … › Having an outside diameter less than 215.9 mm › Having a wall thickness of 12.7 mm or more 7304.29.41.30 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.29.41.40 … › Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.29.41.50 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.29.41.60 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.29.41.80 … › Other › Having an outside diameter exceeding 406.4 mm 7304.29.50.15 … › Having an outside diameter not exceeding 114.3 mm › Having a wall thickness not exceeding 9.5 mm 7304.29.50.30 … › Having an outside diameter not exceeding 114.3 mm › Having a wall thickness exceeding 9.5 mm 7304.29.50.45 … › Of iron or nonalloy steel › Having an outside diameter exceeding 114.3 mm but less than 215.9 mm 7304.29.50.60 … › Of iron or nonalloy steel › Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm 7304.29.50.75 … › Of iron or nonalloy steel › Having an outside diameter exceeding 406.4 mm 7304.29.61.15 … › Having an outside diameter not exceeding 114.3 mm › Having a wall thickness not exceeding 9.5 mm 7304.29.61.30 … › Having an outside diameter not exceeding 114.3 mm › Having a wall thickness exceeding 9.5 mm 7304.29.61.45 … › Of other alloy steel › Having an outside diameter exceeding 114.3 mm but less than 215.9 mm 7304.29.61.60 … › Of other alloy steel › Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm 7304.29.61.75 … › Of other alloy steel › Having an outside diameter exceeding 406.4 mm 7304.31.30.00 … › Cold-drawn or cold-rolled (cold-reduced) › Hollow bars 7304.31.60.10 … › Other › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and… 7304.31.60.50 … › Other › Other 7304.39.00.02 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.39.00.04 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.39.00.06 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.39.00.08 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.39.00.16 … › Other › Galvanized, having an outside diameter not exceeding 114.3 mm 7304.39.00.20 … › Other › Having an outside diameter less than 38.1 mm 7304.39.00.24 … › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm › Having a wall thickness less… 7304.39.00.28 … › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm › Having a wall thickness of 6.4… 7304.39.00.32 … › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm › Having a wall thickness… 7304.39.00.36 … › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm › Having a wall thickness less than… 7304.39.00.40 … › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm › Having a wall thickness of 12.7 mm… 7304.39.00.44 … › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm › Having a wall thickness of 19 mm… 7304.39.00.48 … › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.39.00.52 … › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.39.00.56 … › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm › Having a wall thickness of 19… 7304.39.00.62 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.39.00.68 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.39.00.72 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of 19… 7304.39.00.76 … › Having an outside diameter exceeding 406.4 mm › Having a wall thickness less than 19 mm 7304.39.00.80 … › Having an outside diameter exceeding 406.4 mm › Having a wall thickness of 19 mm or more 7304.41.30.05 … › Of an external diameter of less than 19 mm › Of high-nickel alloy steel 7304.41.30.15 … › Other › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and… 7304.41.30.45 … › Other › Other 7304.41.60.05 … › Other › Of high-nickel alloy steel 7304.41.60.15 … › Other › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and… 7304.41.60.45 … › Other › Other 7304.49.00.05 … › Other › Of high-nickel alloy steel 7304.49.00.15 … › Other › Hollow bars 7304.49.00.45 … › Other › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and… 7304.49.00.60 … › Other › Other 7304.51.10.00 … › Cold-drawn or cold-rolled (cold-reduced) › Suitable for use in the manufacture of ball or roller bearings 7304.51.50.05 … › Other › Of high-nickel alloy steel 7304.51.50.15 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.51.50.45 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.51.50.60 … › Other › Other 7304.59.10.00 … › Other › Suitable for use in the manufacture of ball or roller bearings 7304.59.20.30 … › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater… 7304.59.20.40 … › Other › Having an outside diameter less than 38.1 mm 7304.59.20.45 … › Other › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm 7304.59.20.55 … › Other › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm 7304.59.20.60 … › Other › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm 7304.59.20.70 … › Other › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm 7304.59.20.80 … › Other › Having an outside diameter exceeding 406.4 mm 7304.59.60.00 … › Other › Of heat-resisting steel 7304.59.80.10 … › Other › Having an outside diameter less than 38.1 mm 7304.59.80.15 … › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm › Having a wall thickness less… 7304.59.80.20 … › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm › Having a wall thickness of 6.4… 7304.59.80.25 … › Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm › Having a wall thickness… 7304.59.80.30 … › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm › Having a wall thickness less than… 7304.59.80.35 … › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm › Having a wall thickness of 12.7 mm… 7304.59.80.40 … › Having an outside diameter exceeding 114.3 mm but less than 190.5 mm › Having a wall thickness of 19 mm… 7304.59.80.45 … › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm › Having a wall thickness less… 7304.59.80.50 … › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm › Having a wall thickness of… 7304.59.80.55 … › Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm › Having a wall thickness of 19… 7304.59.80.60 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness less… 7304.59.80.65 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of… 7304.59.80.70 … › Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm › Having a wall thickness of 19… 7304.59.80.80 … › Other › Having an outside diameter exceeding 406.4 mm 7304.90.10.00 … › Having a wall thickness of 4 mm or more › Of iron or nonalloy steel 7304.90.30.00 … › Having a wall thickness of 4 mm or more › Of alloy steel 7304.90.50.00 … › Having a wall thickness of less than 4 mm › Of iron or nonalloy steel 7304.90.70.00 … › Having a wall thickness of less than 4 mm › Of alloy steel Recent changes
Between 2025-10-09 and 2026-10-09: the Chapter 99 headings applied changed for all 5 main origins. Dated changes, with their sources: the change list and the Tariff Change Feed .
Scope We do not classify goods. These pages show reference rates for HTS codes. Choosing the code for an entry is the importer's responsibility, and entries are filed by the importer of record or a licensed customs broker. Duties shown are calculations from public sources, not legal advice.