| 7228.50.10 | 20 | With a maximum cross-sectional dimension of less than 18 mm: | | | | |
| 7228.50.10 | 20 | Of round or rectangular cross section with surfaces ground, milled or polished | kg | | | |
| 7228.50.10 | 60 | With a maximum cross-sectional dimension of 18 mm or more: | | | | |
| 7228.50.10 | 60 | Of round or rectangular cross section with surfaces ground, milled or polished | kg | | | |
| 7228.70 | | Angles, shapes and sections: | | | | |
| 7228.70.30 | 10 | U, I, H and T sections | kg | | | |
| 7228.70.30 | 20 | With a maximum cross-sectional dimension of 76 mm or more: | | | | |
| 7228.70.30 | 60 | With a maximum cross-sectional dimension of less than 76 mm: | | | | |
| 7229.20.00 | 10 | Round, with a diameter of less than or equal to 1.6 mm, containing by weight less than 0.20 percent of carbon, more than 0.9 percent of manganese, and more than 0.6 percent of silicon, and suitable for electric arc welding: | | | | |
| 7229.90.50 | 06 | With a diameter of less than or equal to 1.6 mm, containing by weight less than 0.20 percent of carbon and more than 0.3 percent of nickel or more than 0.08 percent of molybdenum, and suitable for electric arc welding: | | | | |
| 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: | | | | |
| 7301.20 | | Angles, shapes and sections: | | | | |
| 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: | | | | |
| 7302.30.00 | 00 | Switch blades, crossing frogs, point rods and other crossing pieces | kg | Free | | 45% |
| 7304.31 | | Other, of circular cross section, of iron or nonalloy steel: | | | | |
| 7304.41 | | Other, of circular cross section, of stainless steel: | | | | |
| 7304.51 | | Other, of circular cross section, of other alloy steel: | | | | |
| 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: | | | | |
| 7306.30 | | Other, welded, of circular cross section, of iron or nonalloy steel: | | | | |
| 7306.30.50 | 28 | Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit | kg | | | |
| 7306.40 | | Other, welded, of circular cross section, of stainless steel: | | | | |
| 7306.50 | | Other, welded, of circular cross section, of other alloy steel: | | | | |
| 7306.61 | | Other, welded, of noncircular cross section: | | | | |
| 7306.61 | | Of square or rectangular cross section: | | | | |
| 7306.69 | | Of other noncircular cross section: | | | | |
