| 7227.20.00 | 30 | Of welding quality wire rods as defined in statistical note 6 to this chapter | kg | | | |
| 7227.90.60 | 10 | Of Cold Heading Quality (CHQ) steel, as defined in statistical note 5 to this chapter | kg | | | |
| 7227.90.60 | 20 | Of welding quality wire rods as defined in statistical note 6 to this chapter | kg | | | |
| 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: | | | | |
| 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: | | | | |
| 7303.00.00 | | Tubes, pipes and hollow profiles, of cast iron | | Free | | 33% |
| 7304 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: | | | | |
| 7304.11.00 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7304.22.00 | | Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: | | | | |
| 7304.24.30 | | Casing: | | | | |
| 7304.29.10 | | Casing: | | | | |
| 7305.11 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7305.20 | | Casing of a kind used in drilling for oil or gas: | | | | |
| 7305.31.20 | 00 | Tapered pipes and tubes of steel principally used as parts of illuminating articles | kg | Free | | 45% |
| 7306.11.00 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7306.21 | | Casing and tubing of a kind used in drilling for oil or gas: | | | | |
| 7306.21.30 | 00 | Casing: | | | | |
| 7306.29.10 | | Casing: | | | | |
| 7306.30.30 | 00 | Tapered steel pipes and tubes principally used as parts of illuminating articles | kg | Free | | 45% |
| 7306.30.50 | 28 | Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit | kg | | | |
| 7306.50.30 | 00 | Tapered pipes and tubes of steel principally used as parts of illuminating articles | kg | Free | | 45% |
| 7307.11.00 | | Cast fittings: | | | | |
| 7307.11.00 | | Of nonmalleable cast iron | | 4.8% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 25% |
| 7307.11.00 | 45 | For cast-iron soil pipe | kg | | | |
| 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: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
