Trade reference

HS code reference lookup

Enter a code (e.g. 8518 or 8518.30.20.00) or an English product name to see official schedule descriptions and the code hierarchy; when one description matches several candidate classifications they are all listed for you or your broker to weigh against product specifics.

Data: Harmonized Tariff Schedule of the United States (HTSUS) · Revision 22 (2026) · effective 10/30/2026 · USITC HTS · US public domain
中华人民共和国进出口税则(2026) · 税委会公告2025年第12号 · effective 2026-01-01 · official notice

A reference lookup is not a customs classification ruling. Duty rates shown are U.S. import rates only — they are not your destination country’s rates.

Digits (with or without dots) search by code prefix; words search English official descriptions. The dataset is English-only — Chinese terms get an explicit notice rather than a guess.

Chapter 73 — Articles of iron or steel · Section XV

Entries: 759

Code Level Official description Unit US duty (MFN / pref. / col.2)
7306.50 HS6 subheading Other, welded, of circular cross section, of other alloy steel: —
7306.50.10.00 US 10-digit Having a wall thickness of less than 1.65 mm kg Free / — / 35%
7306.50.30.00 US 10-digit Tapered pipes and tubes of steel principally used as parts of illuminating articles kg Free / — / 45%
7306.50.50 US 8-digit Other Free / — / 10%
7306.50.50.10 US 10-digit Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn kg —
7306.50.50.30 US 10-digit Other, cold-drawn or cold-rolled (cold- reduced) kg —
7306.50.50.50 US 10-digit With an outside diameter not exceeding 114.3 mm kg —
7306.50.50.70 US 10-digit With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm kg —
7306.61 HS6 subheading Of square or rectangular cross section: —
7306.61.10.00 US 10-digit Of iron or nonalloy steel kg Free / — / 1%
7306.61.30.00 US 10-digit Of alloy steel kg Free / — / 28%
7306.61.50.00 US 10-digit Of iron or nonalloy steel kg Free / — / 25%
7306.61.70 US 8-digit Of alloy steel Free / — / 35%
7306.61.70.30 US 10-digit Of stainless steel kg —
7306.61.70.60 US 10-digit Other kg —
7306.69 HS6 subheading Of other noncircular cross section: —
7306.69.10.00 US 10-digit Of iron or nonalloy steel kg Free / — / 1%
7306.69.30.00 US 10-digit Of alloy steel kg Free / — / 28%
7306.69.50.00 US 10-digit Of iron or nonalloy steel kg Free / — / 25%
7306.69.70 US 8-digit Of alloy steel Free / — / 35%
7306.69.70.30 US 10-digit Of stainless steel kg —
7306.69.70.60 US 10-digit Other kg —
7306.90 HS6 subheading Other: —
7306.90.10.00 US 10-digit Of iron or nonalloy steel kg Free / — / 5.5%
7306.90.50.00 US 10-digit Of alloy steel kg Free / — / 10%
7307 HS4 heading Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: —
7307.11.00 US 8-digit Of nonmalleable cast iron 4.8% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 25%
7307.11.00.30 US 10-digit For threaded pipe kg —
7307.11.00.45 US 10-digit For cast-iron soil pipe kg —
7307.11.00.60 US 10-digit Other kg —
7307.19 HS6 subheading Other: —
7307.19.30 US 8-digit Ductile fittings 5.6% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.19.30.40 US 10-digit Grooved-end fittings (including grooved couplings) kg —
7307.19.30.60 US 10-digit Threaded kg —
7307.19.30.70 US 10-digit With mechanical, push-on (rubber compression) or flanged joints attached kg —
7307.19.30.85 US 10-digit Other kg —
7307.19.90 US 8-digit Other 6.2% / Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) / 45%
7307.19.90.30 US 10-digit Unions kg —
7307.19.90.40 US 10-digit Grooved-end fittings (including grooved couplings) kg —
7307.19.90.60 US 10-digit Threaded kg —
7307.19.90.80 US 10-digit Other kg —
7307.21 HS6 subheading Flanges: —
7307.21.10.00 US 10-digit Not machined, not tooled and not otherwise processed after forging kg 3.3% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 34%
7307.21.50.00 US 10-digit Other kg 5.6% / Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.22 HS6 subheading Threaded elbows, bends and sleeves: —
7307.22.10.00 US 10-digit Sleeves (couplings) kg Free / — / 45%
7307.22.50.00 US 10-digit Other kg 6.2% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.23.00 US 8-digit Butt welding fittings 5% / Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.23.00.30 US 10-digit Not machined, not tooled and not otherwise processed after forming kg —
7307.23.00.90 US 10-digit Other kg —
7307.29.00 US 8-digit Other 5% / Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.29.00.30 US 10-digit Nipples kg —
7307.29.00.90 US 10-digit Other kg —
7307.91 HS6 subheading Flanges: —
7307.91.10.00 US 10-digit Of iron or nonalloy steel kg 3.3% / Free (A,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 25%
7307.91.30.00 US 10-digit Of alloy steel (except stainless steel) kg 3.2% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 33%
7307.91.50 US 8-digit Other 5.5% / Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.75% (JP) / 45%
7307.91.50.10 US 10-digit Of iron or nonalloy steel kg —
7307.91.50.30 US 10-digit Of alloy steel (except stainless steel) kg —
7307.91.50.50 US 10-digit Of iron or nonalloy steel kg —
7307.91.50.70 US 10-digit Of alloy steel (except stainless steel) kg —
7307.92 HS6 subheading Threaded elbows, bends and sleeves: —
7307.92.30 US 8-digit Sleeves (couplings) Free / — / 45%
7307.92.30.10 US 10-digit Of iron or nonalloy steel kg —
7307.92.30.30 US 10-digit Of alloy steel (except stainless steel) kg —
7307.92.90.00 US 10-digit Other kg 6.2% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 3.1% (JP) / 45%
7307.93 HS6 subheading Butt welding fittings: —
7307.93.30 US 8-digit Of iron or nonalloy steel 6.2% / Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.93.30.10 US 10-digit Not machined, not tooled and not otherwise processed after forging kg —
7307.93.30.40 US 10-digit Other kg —
7307.93.60.00 US 10-digit Of alloy steel (except stainless steel) kg 5.5% / Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.93.90 US 8-digit With an inside diameter of 360 mm or more 4.3% / Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.93.90.10 US 10-digit Not machined, not tooled and not otherwise processed after forging kg —
7307.93.90.40 US 10-digit Other kg —
7307.93.90.60 US 10-digit Of alloy steel (except stainless steel) kg —
7307.99 HS6 subheading Other: —
7307.99.10.00 US 10-digit Of iron or nonalloy steel kg 3.7% / Free (A,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 25% *
7307.99.30.00 US 10-digit Of alloy steel (except stainless steel) kg 3.2% / Free (A,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 33%
7307.99.50 US 8-digit Other 4.3% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 45%
7307.99.50.15 US 10-digit Nipples kg —
7307.99.50.45 US 10-digit Other kg —
7307.99.50.60 US 10-digit Of alloy steel (except stainless steel) kg —
7308 HS4 heading Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: —
7308.10.00.00 US 10-digit Bridges and bridge sections kg Free / — / 45%
7308.20.00 US 8-digit Towers and lattice masts Free / — / 45%
7308.20.00.30 US 10-digit Tubular, whether or not tapered, and sectional components thereof kg —
7308.20.00.35 US 10-digit Tubular wind turbine towers, whether or not tapered, and sectional components thereof kg —
7308.20.00.90 US 10-digit Other kg —
7308.30 HS6 subheading Doors, windows and their frames and thresholds for doors: —
7308.30.10.00 US 10-digit Of stainless steel kg Free / — / 35%
7308.30.50 US 8-digit Other Free / — / 25%
7308.30.50.15 US 10-digit Windows and their frames kg —
7308.30.50.25 US 10-digit Thresholds for doors kg —
7308.30.50.50 US 10-digit Other kg —
7308.40.00.00 US 10-digit Equipment for scaffolding, shuttering, propping or pit- propping kg Free / — / 45%
7308.90 HS6 subheading Other: —
7308.90.30.00 US 10-digit Not in part of alloy steel kg Free / — / 20% *
7308.90.60.00 US 10-digit Other kg Free / — / 30% *
7308.90.70.00 US 10-digit Steel grating kg Free / — / 45%
7308.90.95 US 8-digit Other Free / — / 45%
7308.90.95.30 US 10-digit Sheet-metal roofing, siding, flooring and roof drainage equipment kg —
7308.90.95.60 US 10-digit Architectural and ornamental work kg —
7308.90.95.90 US 10-digit Other kg —
7309.00.00 US 8-digit Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment Free / — / 45%
7309.00.00.30 US 10-digit Tanks No., kg —
7309.00.00.90 US 10-digit Other No., kg —
7310 HS4 heading Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment: —
7310.10.00 US 8-digit Of a capacity of 50 liters or more Free / — / 25% *
7310.10.00.05 US 10-digit Refillable stainless steel kegs, whether or not pressurized, of a kind described in statistical note 1 to this chapter. No. —
7310.10.00.15 US 10-digit Empty steel drums and barrels No., kg —
7310.10.00.90 US 10-digit Other kg —
7310.21.00 US 8-digit Cans which are to be closed by soldering or crimping Free / — / 25%
7310.21.00.25 US 10-digit Containers, of circular cross section, of a volume capacity between 11.4 liters and 26.6 liters, of a kind used for the conveyance of goods No. —
7310.21.00.70 US 10-digit Containers of a circular cross section, of a capacity not exceeding 11.4 liters, of a kind used for aerosols No. —
7310.21.00.75 US 10-digit Other No. —
7310.29.00 US 8-digit Other Free / — / 25% *
7310.29.00.20 US 10-digit Refillable stainless steel kegs, whether or not pressurized, of a kind described in statistical note 1 to this chapter No. —
7310.29.00.30 US 10-digit Other No. —
7310.29.00.55 US 10-digit Refillable stainless steel kegs, whether or not pressurized, of a kind described in statistical note 1 to this chapter No. —
7310.29.00.65 US 10-digit Other No. —
7311.00.00 US 8-digit Containers for compressed or liquefied gas, of iron or steel Free / — / 25% *
7311.00.00.30 US 10-digit Seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number No., kg —
7311.00.00.60 US 10-digit Other No., kg —
7311.00.00.90 US 10-digit Other No., kg —
7312 HS4 heading Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated: —
7312.10 HS6 subheading Stranded wire, ropes and cables: —
7312.10.05.00 US 10-digit Fitted with fittings or made up into articles kg Free / — / 45%
7312.10.10 US 8-digit Other Free / — / 45%
7312.10.10.30 US 10-digit Tire cord kg —
7312.10.10.50 US 10-digit Other, stranded wire having a lay or twist of not more than 1 revolution for a length equal to the strand diameter multiplied by 8.5 kg —
7312.10.10.70 US 10-digit Other kg —
7312.10.20.00 US 10-digit Fitted with fittings or made up into articles kg Free / — / 45%
7312.10.30 US 8-digit Other Free / — / 35%
7312.10.30.05 US 10-digit Tire cord kg —
7312.10.30.10 US 10-digit Covered with textile or other non- metallic material kg —
7312.10.30.12 US 10-digit Other kg —
7312.10.30.20 US 10-digit Other, stranded wire having a lay or twist of not more than 1 revolution for a length equal to the strand diameter multiplied by 8.5 kg —
7312.10.30.45 US 10-digit Of brass plated wire kg —
7312.10.30.65 US 10-digit ACSR core strand kg —
7312.10.30.70 US 10-digit Covered with textile or other nonmetallic material kg —
7312.10.30.74 US 10-digit Other kg —
7312.10.30.80 US 10-digit Other kg —
7312.10.50.00 US 10-digit Fitted with fittings or made up into articles kg Free / — / 45%
7312.10.60 US 8-digit Other Free / — / 45%
7312.10.60.30 US 10-digit With a diameter not exceeding 9.5 mm kg —
7312.10.60.60 US 10-digit Other kg —
7312.10.70.00 US 10-digit Fitted with fittings or made up into articles kg Free / — / 45%
7312.10.80.00 US 10-digit Of brass plated wire kg Free / — / 35%
7312.10.90 US 8-digit Other Free / — / 35%
7312.10.90.30 US 10-digit With a diameter not exceeding 9.5 mm kg —

Browse by chapter

Chapters 01–97 of the Harmonized System (US chapters 98/99 are national legislation and not included).

Section I — Live Animals; Animal Products
Section II — Vegetable Products
Section III — Animal, Vegetable Or Microbial Fats And Oils And Their Cleavage Products; Prepared Edible Fats; Animal Or Vegetable Waxes
Section IV — Prepared Foodstuffs; Beverages, Spirits And Vinegar; Tobacco And Manufactured Tobacco Substitutes; Products, Whether Or Not Containing Nicotine, Intended For Inhalation Without Combustion; Other Nicotine Containing Products Intended For The Intake Of Nicotine Into The Human Body
Section V — Mineral Products
Section VI — Products Of The Chemical Or Allied Industries
Section VII — Plastics And Articles Thereof; Rubber And Articles Thereof
Section VIII — Raw Hides And Skins, Leather, Furskins And Articles Thereof; Saddlery And Harness; Travel Goods, Handbags And Similar Containers; Articles Of Animal Gut (Other Than Silkworm Gut)
Section IX — Wood And Articles Of Wood; Wood Charcoal; Cork And Articles Of Cork; Manufactures Of Straw, Of Esparto Or Of Other Plaiting Materials; Basketware And Wickerwork
Section X — Pulp Of Wood Or Of Other Fibrous Cellulosic Material; Recovered (Waste And Scrap) Paper Or Paperboard; Paper And Paperboard And Articles Thereof
Section XI — Textiles And Textile Articles
Section XII — Footwear, Headgear, Umbrellas, Sun Umbrellas, Walking-Sticks, Seat-Sticks, Whips, Riding-Crops And Parts Thereof; Prepared Feathers And Articles Made Therewith; Artificial Flowers; Articles Of Human Hair
Section XIII — Articles Of Stone, Plaster, Cement, Asbestos, Mica Or Similar Materials; Ceramic Products; Glass And Glassware
Section XIV — Natural Or Cultured Pearls, Precious Or Semiprecious Stones, Precious Metals, Metals Clad With Precious Metal, And Articles Thereof; Imitation Jewelry; Coin
Section XV — Base Metals And Articles Of Base Metal
Section XVI — Machinery And Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders And Reproducers, Television Image And Sound Recorders And Reproducers, And Parts And Accessories Of Such Articles
Section XVII — Vehicles, Aircraft, Vessels And Associated Transport Equipment
Section XVIII — Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical Or Surgical Instruments And Apparatus; Clocks And Watches; Musical Instruments; Parts And Accessories Thereof
Section XIX — Arms And Ammunition; Parts And Accessories Thereof
Section XX — Miscellaneous Manufactured Articles
Section XXI — Works Of Art, Collectors' Pieces And Antiques

What this data covers — and what it does not

  • International layer: HS chapters 01–97 with 4-digit headings and 6-digit subheadings (HS 2022 edition) — the part shared by every member country’s tariff schedule.
  • US layer: 8-digit rate lines and 10-digit statistical suffixes of the US HTS, clearly badged; the duty columns are US import rates for reference only.
  • China layer: PRC 2026 tariff schedule 8-digit lines with official Chinese names and MFN/ordinary rates, matched to international rows by shared HS6 prefix; provisional (△), agreement, quota, VAT/consumption and 10-digit customs numbers are not in scope.
  • Not included: the EU’s 8-digit CN codes, other countries’ national extensions, WCO Explanatory Notes, and US chapters 98/99 (national legislation).
  • Descriptions are English-only. Classification of a real product needs the General Rules of Interpretation plus material, composition, use and processing details — treat every result as a candidate, not a ruling.

Official verification

For declarations, pre-classification or current rates, use an official channel:

Frequently asked

Can I declare with the code I find here?

No — this is a reference lookup. Candidate codes, official descriptions and hierarchy are informational, not a customs classification ruling. Formal classification applies the General Rules of Interpretation to material, composition, use and processing; ask your customs authority for a binding ruling when needed.

Why does one product name return several codes?

That's normal. The same description appears at different levels (heading/subheading/statistical suffix) and under different chapters — cotton, for example, lives in the yarn, fabric and apparel chapters alike. The tool lists every candidate instead of guessing one answer for you.

Whose 8- and 10-digit codes are these?

The international Harmonized System only standardizes the first six digits (2-digit chapter + 4-digit heading + 6-digit subheading). The 8/10-digit codes here are US HTS national extensions and are labelled as such; China uses an 8-digit tariff schedule and the EU an 8-digit CN code — neither is in this dataset.

Are the duty rates shown what I'd pay importing to my country?

No. The rate columns are US import duty (General MFN / Special preferential / Column 2) — they apply to imports into the United States and are shown for reference only. Check the official tariff service of your destination country for actual rates.

How does Chinese search work?

Chinese terms are matched verbatim against the official Chinese product names in the PRC 2026 tariff schedule — no machine translation, no guessed codes. Colloquial names may miss; try a more formal name or English.

How fresh is the data?

The snapshot is the USITC's 2026 HTS Revision 22 (effective 2026-10-30); the page always shows the release and its effective date and warns when the snapshot grows stale. Use the official live service for filings.

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