US HTS Chapter 73

Articles of iron or steel

Chapter 73 covers many finished and semi-finished articles of iron or steel. Product function and construction matter, and selected provisions can fall within current Section 232 steel treatment.

20 four-digit headings · 573 declarable 10-digit lines · 2026 HTS Revision 12

Classification facts

Facts that commonly matter inside Chapter 73

  • product function
  • construction and manufacturing method
  • material and dimensions
  • whether a more specific heading describes the article
Not a classification ruling

These facts help structure the search. They do not establish that a product belongs in Chapter 73 or in any specific HTS line.

Official schedule hierarchy

Four-digit headings currently indexed in Chapter 73

7301Heading

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:

Browse descendants
7302Heading

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:

Browse descendants
7304Heading

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:

Browse descendants
7305Heading

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:

Browse descendants
7306Heading

Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel:

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7307Heading

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

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7308Heading

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:

Browse descendants
7310Heading

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:

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7312Heading

Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated:

Browse descendants
7314Heading

Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel:

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7318Heading

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel:

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7319Heading

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:

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7321Heading

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:

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7322Heading

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:

Browse descendants
7323Heading

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:

Browse descendants

Declarable examples

Examples of exact 10-digit lines in the current schedule

These are numerical examples from the published schedule, not recommendations for a product.