| 7228.40.00 | 00 | Other bars and rods, not further worked than forged | kg | Free | | 28% |
| 7228.50 | | Other bars and rods, not further worked than cold- formed or cold-finished: | | | | |
| 7228.60 | | Other bars and rods: | | | | |
| 7228.70 | | Angles, shapes and sections: | | | | |
| 7228.70.30 | | Hot-rolled, not drilled, not punched and not otherwise advanced | | Free | | 10% |
| 7228.70.30 | 10 | U, I, H and T sections | kg | | | |
| 7228.80.00 | 00 | Hollow drill bars and rods | kg | Free | | 30% |
| 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: | | | | |
| 7302.10.10 | 10 | Standard tee rails over 30 kg per meter | kg | | | |
| 7302.10.10 | 35 | Standard tee rails over 30 kg per meter | 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% |
| 7304 | | Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: | | | | |
| 7304.22.00 | | Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: | | | | |
| 7304.31.60 | 10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | kg | | | |
| 7304.39.00 | 02 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters: | | | | |
| 7304.41.30 | 15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | kg | | | |
| 7304.41.60 | 15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | kg | | | |
| 7304.49.00 | 45 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | kg | | | |
| 7304.51.50 | 15 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
