| 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 | | Wire of other alloy steel: | | | | |
| 7229.20.00 | | Of silico-manganese steel | | Free | | 33% |
| 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: | | | | |
| 7229.90.05 | 00 | Of high-speed steel | kg | Free | | 37% |
| 7229.90.10 | 00 | Flat wire | kg | Free | | 33% |
| 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: | | | | |
| 7229.90.50 | 16 | With a diameter of less than 1.0 mm | kg | | | |
| 7229.90.50 | 31 | With a diameter of 1.0 mm or more but less than 1.5 mm | kg | | | |
| 7229.90.50 | 51 | With a diameter of 1.5 mm or more | 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: | | | | |
| 7301.20.10 | 00 | Of iron or nonalloy steel | kg | Free | | 20% |
| 7301.20.50 | 00 | Of alloy steel | kg | Free | | 28% |
| 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: | | | | |
| 7302.10.10 | | Of iron or nonalloy steel | | Free | | 1% |
| 7302.10.10 | 65 | Railway rails for rerolling | kg | | | |
| 7302.10.50 | | Of alloy steel | | Free | | 9% |
| 7302.10.50 | 40 | Railway rails for rerolling | kg | | | |
| 7302.30.00 | 00 | Switch blades, crossing frogs, point rods and other crossing pieces | kg | Free | | 45% |
| 7302.40.00 | 00 | Fish-plates and sole plates | kg | Free | | 2% |
| 7303.00.00 | | Tubes, pipes and hollow profiles, of cast iron | | Free | | 33% |
| 7303.00.00 | 60 | Pressure pipe with an inside diameter of less than 356 mm | kg | | | |
| 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: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
