HTS Chapter 73: Articles of iron or steel
HTS Chapter 73 covers Articles of iron or steel. Browse 20 published headings, then narrow to the active product line that matches the goods.
2026 HTS Rev 19 Synced Rules verified Operational
What belongs in HTS Chapter 73?
Direct answer: Chapter 73 organizes articles of iron or steel. The material alone is not enough to classify a product: the headings separate goods by form and function, including structures, fasteners, wire articles, household articles, sanitary ware, and other manufactured articles.
How to narrow it: document whether the item is a pipe or tube, fitting, structure or part, fastener, wire article, household article, casting, chain, container, or another article. Record the iron or steel type, composition where required, whether it is cast, forged, welded, seamless, plated, coated, threaded, or assembled, its dimensions or capacity, and its intended function. Then ask whether another chapter names the finished good more specifically.
Chapter 72 generally covers iron and steel materials; Chapter 73 generally covers articles of iron or steel. That is only a navigation aid. Chapter titles have no legal significance: heading and subheading text plus the section and chapter notes control. See the USITC classification FAQ ↗.
Chapter 73 is not a Section 232 coverage test. An exact ordinary code can be one input, but coverage also depends on the operative proclamation and annex, derivative-product rules, exclusions, origin, content or value rules, and entry date. There is no chapter-wide Section 232 rate.
Source and date: the headings below come from the site’s 2026 HTS Rev 19 export, effective . Review Chapter 73 in the official USITC schedule ↗ and use CBP CROSS ↗ for comparable published rulings; another importer’s ruling is context, not a ruling for your product.
Narrow to an exact active line, confirm the official notes and relevant rulings, then open the contextual calculator link from that leaf page. The blank calculator is secondary because Chapter 73 itself is not calculable.
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS Chapter 73 covers many articles made mainly of iron or steel, including structural components, railway-track materials, tubes and pipes, pipe fittings, tanks and containers, wire products, fencing, chain, fasteners, needles, and springs. The chapter is organized by the product’s physical form, construction, and intended function—not simply by the fact that it contains metal. Other chapters may apply when a product is machinery, a vehicle part, a tool, or another specifically described article.
In the Harmonized Tariff Schedule (HTS), a product is classified through progressively narrower levels: chapter, heading, subheading, and the complete 10-digit statistical reporting number. For example, a merchant may start with Chapter 73, compare the headings that describe tubes, structures, fasteners, or another product group, then review the subheadings for details such as seamless versus welded construction, dimensions, finish, or intended use. Read the legal heading and subheading text, the section and chapter notes, and any relevant exclusions before selecting the 10-digit code. Classification can require customs-broker or specialist judgment when the product has multiple materials, unusual construction, or competing descriptions.
What to check
- Document the product’s material, manufacturing method, dimensions, cross-sectional shape, finish, and principal use; compare those facts with the heading and subheading language.
- Check whether the article is specifically covered elsewhere in the HTS or excluded by a section, chapter, or heading note before using Chapter 73.
- Distinguish similar products carefully—for example, seamless versus welded pipe, structural parts versus general metal shapes, and iron or steel fasteners versus articles classified by another function.
- Review the complete 10-digit statistical number, including any units of quantity and statistical suffix, rather than stopping at the heading or six-digit subheading.
- Check current tariff instructions for any applicable Chapter 99 provisions, trade remedies, quota measures, origin-based requirements, or other additional reporting obligations, and confirm uncertain classifications with a qualified customs broker or official ruling process.
How to use this chapter
A chapter is the first classification level, not a duty rate. Choose the heading that describes the product, narrow by material, construction, use, or other legal distinctions, and verify the final line against the official HTS notes.
Heading list
| HTS code | Description | Linked 8-digit entries |
|---|---|---|
| 7301 | Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel: | 0 |
| 7302 | Railway or tramway track construction material of iron or steel, the following: rails, check-rails and rack rails, switch blades, crossing frogs, point rods and other crossing pieces, sleepers (cross-ties), fish-plates, chairs, chair wedges, sole plates (base plates), rail clips, bedplates, ties and other material specialized for jointing or fixing rails: | 0 |
| 7304 | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: | 4 |
| 7305 | Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel: | 0 |
| 7306 | Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: | 1 |
| 7307 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: | 3 |
| 7308 | 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: | 1 |
| 7310 | 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: | 1 |
| 7312 | Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated: | 0 |
| 7314 | Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel: | 0 |
| 7315 | Chain and parts thereof, of iron or steel: | 2 |
| 7318 | Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: | 3 |
| 7319 | Sewing needles, knitting needles, bodkins, crochet hooks, embroidery stilettos and similar articles for use in the hand, of iron or steel; safety pins and other pins of iron or steel, not elsewhere specified or included: | 0 |
| 7320 | Springs and leaves for springs, of iron or steel: | 0 |
| 7321 | Stoves, ranges, grates, cookers (including those with subsidiary boilers for central heating), barbecues, braziers, gas rings, plate warmers and similar nonelectric domestic appliances, and parts thereof, of iron or steel: | 2 |
| 7322 | Radiators for central heating, not electrically heated, and parts thereof, of iron or steel; air heaters and hot air distributors (including distributors which can also distribute fresh or conditioned air), not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel: | 1 |
| 7323 | Table, kitchen or other household articles and parts thereof, of iron or steel; iron or steel wool; pot scourers and scouring or polishing pads, gloves and the like, of iron or steel: | 0 |
| 7324 | Sanitary ware and parts thereof, of iron or steel: | 1 |
| 7325 | Other cast articles of iron or steel: | 1 |
| 7326 | Other articles of iron or steel: | 2 |
Linked measures
0 linked measure entries in the current snapshot.
Questions about HTS Chapter 73
What does HTS Chapter 73 cover?
HTS Chapter 73 covers Articles of iron or steel. This page groups the chapter’s 4-digit headings; a shipment still needs the most specific active 8- or 10-digit line supported by the product facts.
Is HTS Chapter 73 a final product classification?
No. A chapter is a broad 2-digit category. Narrow it to the applicable heading and the most specific active statistical line before estimating duty or filing an entry.