| 7227.90.60 | 05 | Of high-nickel alloy steel | kg | | | |
| 7228.30 | | Other bars and rods, not further worked than hot-rolled, hot-drawn or extruded: | | | | |
| 7228.30.40 | 00 | Of chipper knife steel, not cold-formed | kg | Free | | 28% |
| 7228.30.80 | 05 | Of high-nickel alloy steel | kg | | | |
| 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: | | | | |
| 7228.50.50 | 05 | Of high-nickel alloy steel | kg | | | |
| 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: | | | | |
| 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 | 15 | Over 30 kg per meter | kg | | | |
| 7302.10.10 | 35 | Standard tee rails over 30 kg per meter | kg | | | |
| 7302.10.10 | 45 | Over 30 kg per meter | kg | | | |
| 7304.11.00 | | Line pipe of a kind used for oil or gas pipelines: | | | | |
| 7304.19.10 | 45 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.19.10 | 60 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.22.00 | | Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: | | | | |
| 7304.22.00 | 30 | Having a wall thickness not exceeding 9.5 mm | kg | | | |
| 7304.22.00 | 45 | Having a wall thickness exceeding 9.5 mm | kg | | | |
| 7304.23.60 | 30 | Having a wall thickness not exceeding 9.5 mm | kg | | | |
| 7304.23.60 | 45 | Having a wall thickness exceeding 9.5 mm | kg | | | |
| 7304.24.30 | 10 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.24.30 | 20 | Having a wall thickness of 12.7 mm or more | kg | | | |
| 7304.24.30 | 30 | Having a wall thickness less than 12.7 mm | kg | | | |
| 7304.24.30 | 40 | Having a wall thickness of 12.7 mm or more | kg | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
