| 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 | | | |
| 7228.70.30 | 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: | | | | |
| 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: | | | | |
| 7229.20.00 | 10 | Plated or coated with copper | kg | | | |
| 7229.90.05 | 00 | Of high-speed steel | kg | Free | | 37% |
| 7229.90.50 | | Round wire | | 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 | 06 | Plated or coated with copper | kg | | | |
| 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 | | 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 | Not heat treated: | | | | |
| 7302.10.10 | 10 | Standard tee rails over 30 kg per meter | kg | | | |
| 7302.10.10 | 35 | Heat treated: | | | | |
| 7302.10.10 | 35 | Standard tee rails over 30 kg per meter | kg | | | |
| 7302.10.10 | 65 | Used: | | | | |
| 7302.10.50 | 40 | Used: | | | | |
| 7302.30.00 | 00 | Switch blades, crossing frogs, point rods and other crossing pieces | kg | Free | | 45% |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
