| 7306.40.50 | 62 | With an outside diameter not exceeding 114.3 mm: | | | | |
| 7306.40.50 | 62 | Containing more than 1.5 per- cent but less than 5 percent by weight of molybdenum | kg | | | |
| 7306.40.50 | 85 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm: | | | | |
| 7306.50 | | Other, welded, of circular cross section, of other alloy steel: | | | | |
| 7306.50.50 | 10 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold-drawn | kg | | | |
| 7306.50.50 | 50 | With an outside diameter not exceeding 114.3 mm | kg | | | |
| 7306.50.50 | 70 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm | kg | | | |
| 7306.61 | | Other, welded, of noncircular cross section: | | | | |
| 7307.11.00 | 30 | For threaded pipe | kg | | | |
| 7307.19.30 | 60 | Threaded | kg | | | |
| 7307.19.90 | 60 | Threaded | kg | | | |
| 7307.22 | | Threaded elbows, bends and sleeves: | | | | |
| 7307.91.50 | 10 | With an inside diameter of less than 360 mm: | | | | |
| 7307.91.50 | 50 | With an inside diameter of 360 mm or more: | | | | |
| 7307.92 | | Threaded elbows, bends and sleeves: | | | | |
| 7307.93.30 | | With an inside diameter of less than 360 mm: | | | | |
| 7307.93.90 | | With an inside diameter of 360 mm or more | | 4.3% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 45% |
| 7308 | | Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel: | | | | |
| 7308.90.30 | 00 | Columns, pillars, posts, beams, girders and similar structural units: | | | | |
| 7310.21.00 | | Cans which are to be closed by soldering or crimping | | Free | | 25% |
| 7311.00.00 | 30 | Certified prior to exportation to have been made in accordance with the safety requirements of sections 178.36 through 178.68 of title 49 CFR or under a specific exemption to those requirements: | | | | |
| 7312 | | Stranded wire, ropes, cables, plaited bands, slings and the like, of iron or steel, not electrically insulated: | | | | |
| 7312.10 | | Stranded wire, ropes and cables: | | | | |
| 7312.10.05 | 00 | Stranded wire: | | | | |
| 7312.10.05 | 00 | Fitted with fittings or made up into articles | kg | Free | | 45% |
