HS chapter 73: Articles of iron or steel

Last updated 11 October 2026

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Key facts

Chapter: 73
Description: Articles of iron or steel
Headings: 26
Subheadings: 124
Edition: HS2022

Summary

HS chapter 73 covers articles of iron or steel. It has 26 headings, 73.01 to 73.26, and 124 six-digit subheadings in HS2022. National tariff lines under chapter 73 are live on border.bot for the United States (573 lines, also used by 1 other country).

What this chapter covers

HS chapter 73 covers articles of iron or steel.

It has 26 headings, 73.01 to 73.26, and 124 six-digit subheadings in HS2022.

Subheadings 1 to 100 of 124, page 1 of 2.

73.01 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

7301.10Sheet piling
7301.20Angles, shapes and sections

73.02 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

7302.10Rails
7302.30Switch blades, crossing frogs, point rods and other crossing pieces
7302.40Fish-plates and sole plates
7302.90Other

73.03 Tubes, pipes and hollow profiles, of cast iron

7303.00Tubes, pipes and hollow profiles, of cast iron

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

7304.11Line pipe of a kind used for oil or gas pipelines: Of stainless steel
7304.19Line pipe of a kind used for oil or gas pipelines: Other
7304.22Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Drill pipe of stainless steel
7304.23Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other drill pipe
7304.24Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other, of stainless steel
7304.29Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Other
7304.31Other, of circular cross-section, of iron or non-alloy steel: Cold-drawn or cold-rolled (cold-reduced)
7304.39Other, of circular cross-section, of iron or non-alloy steel: Other
7304.41Other, of circular cross-section, of stainless steel: Cold-drawn or cold-rolled (cold-reduced)
7304.49Other, of circular cross-section, of stainless steel: Other
7304.51Other, of circular cross-section, of other alloy steel: Cold-drawn or cold-rolled (cold-reduced)
7304.59Other, of circular cross-section, of other alloy steel: Other
7304.90Other

73.05 Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4mm, of iron or steel

7305.11Line pipe of a kind used for oil or gas pipelines: Longitudinally submerged arc welded
7305.12Line pipe of a kind used for oil or gas pipelines: Other, longitudinally welded
7305.19Line pipe of a kind used for oil or gas pipelines: Other
7305.20Casing of a kind used in drilling for oil or gas
7305.31Other, welded: Longitudinally welded
7305.39Other, welded: Other
7305.90Other

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

7306.11Line pipe of a kind used for oil or gas pipelines: Welded, of stainless steel
7306.19Line pipe of a kind used for oil or gas pipelines: Other
7306.21Casing and tubing of a kind used in drilling for oil or gas: Welded, of stainless steel
7306.29Casing and tubing of a kind used in drilling for oil or gas: Other
7306.30Other, welded, of circular cross-section, of iron or non-alloy steel
7306.40Other, welded, of circular cross-section, of stainless steel
7306.50Other, welded, of circular cross-section, of other alloy steel
7306.61Other, welded, of non-circular cross-section: Of square or rectangular cross-section
7306.69Other, welded, of non-circular cross-section: Of other non-circular cross-section
7306.90Other

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

7307.11Cast fittings: Of non-malleable cast iron
7307.19Cast fittings: Other
7307.21Other, of stainless steel: Flanges
7307.22Other, of stainless steel: Threaded elbows, bends and sleeves
7307.23Other, of stainless steel: Butt welding fittings
7307.29Other, of stainless steel: Other
7307.91Other: Flanges
7307.92Other: Threaded elbows, bends and sleeves
7307.93Other: Butt welding fittings
7307.99Other: Other

73.08 Structures (excluding prefabricated buildings of heading 94.06) and parts of structures (for example, bridges and bridge-sections, lock-gates, towers, lattice masts, roofs, roofing frame-works, 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

7308.10Bridges and bridge-sections
7308.20Towers and lattice masts
7308.30Doors, windows and their frames and thresholds for doors
7308.40Equipment for scaffolding, shuttering, propping or pitpropping
7308.90Other

73.09 Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300l, whether or not lined or heat-insulated, but not fitted with mechanical or thermal equipment

7309.00Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300l, whether or not lined or heat-insulated, but not fitted with mechanical or thermal equipment

73.10 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 300l, whether or not lined or heat- insulated, but not fitted with mechanical or thermal equipment

7310.10Of a capacity of 50l or more
7310.21Of a capacity of less than 50 l: Cans which are to be closed by soldering or crimping
7310.29Of a capacity of less than 50 l: Other

73.11 Containers for compressed or liquefied gas, of iron or steel

7311.00Containers for compressed or liquefied gas, of iron or steel

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

7312.10Stranded wire, ropes and cables
7312.90Other

73.13 Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel

7313.00Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel

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

7314.12Woven cloth: Endless bands for machinery, of stainless steel
7314.14Woven cloth: Other woven cloth, of stainless steel
7314.19Woven cloth: Other
7314.20Grill, netting and fencing, welded at the intersection, of wire with a maximum cross-sectional dimension of 3mm or more and having a mesh size of 100 cm² or more
7314.31Other grill, netting and fencing, welded at the intersection: Plated or coated with zinc
7314.39Other grill, netting and fencing, welded at the intersection: Other
7314.41Other cloth, grill, netting and fencing: Plated or coated with zinc
7314.42Other cloth, grill, netting and fencing: Coated with plastics
7314.49Other cloth, grill, netting and fencing: Other
7314.50Expanded metal

73.15 Chain and parts thereof, of iron or steel

7315.11Articulated link chain and parts thereof: Roller chain
7315.12Articulated link chain and parts thereof: Other chain
7315.19Articulated link chain and parts thereof: Parts
7315.20Skid chain
7315.81Other chain: Stud-link
7315.82Other chain: Other, welded link
7315.89Other chain: Other
7315.90Other parts

73.16 Anchors, grapnels and parts thereof, of iron or steel

7316.00Anchors, grapnels and parts thereof, of iron or steel

73.17 Nails, tacks, drawing pins, corrugated nails, staples (other than those of heading 83.05) and similar articles, of iron or steel, whether or not with heads of other material, but excluding such articles with heads of copper

7317.00Nails, tacks, drawing pins, corrugated nails, staples (other than those of heading 83.05) and similar articles, of iron or steel, whether or not with heads of other material, but excluding such articles with heads of copper

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

7318.11Threaded articles: Coach screws
7318.12Threaded articles: Other wood screws
7318.13Threaded articles: Screw hooks and screw rings
7318.14Threaded articles: Self-tapping screws
7318.15Threaded articles: Other screws and bolts, whether or not with their nuts or washers
7318.16Threaded articles: Nuts
7318.19Threaded articles: Other
7318.21Non-threaded articles: Spring washers and other lock washers
7318.22Non-threaded articles: Other washers
7318.23Non-threaded articles: Rivets
7318.24Non-threaded articles: Cotters and cotter-pins
7318.29Non-threaded articles: Other

73.19 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

7319.40Safety pins and other pins
7319.90Other

73.20 Springs and leaves for springs, of iron or steel

7320.10Leaf-springs and leaves therefor
7320.20Helical springs
7320.90Other

73.21 Stoves, ranges, grates, cookers (including those with subsidiary boilers for central heating), barbecues, braziers, gas-rings, plate warmers and similar non-electric domestic appliances, and parts thereof, of iron or steel

7321.11Cooking appliances and plate warmers: For gas fuel or for both gas and other fuels
7321.12Cooking appliances and plate warmers: For liquid fuel
7321.19Cooking appliances and plate warmers: Other, including appliances for solid fuel

What it doesn’t cover

Chapter 72, before it, covers iron and steel; chapter 74, after it, covers copper and articles thereof.

How it is structured

Chapter 73 is the first level of the Harmonized System. Its headings add two digits to the chapter number (73.01), and each heading's subheadings add two more.

In other countries

National tariff lines under chapter 73 are live on border.bot for the United States (573 lines, also used by 1 other country).

United States573 lines, used by 1 other country

Frequently asked questions

What does HS chapter 73 cover?

HS chapter 73 covers articles of iron or steel.

How many headings and subheadings are in HS chapter 73?

HS chapter 73 has 26 headings and 124 six-digit subheadings in HS2022.

Which countries’ tariffs list national lines in HS chapter 73?

National tariff lines under chapter 73 are live on border.bot for the United States (573 lines, also used by 1 other country).

Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

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