| 7307.91.10 | 00 | Of iron or nonalloy steel | kg | 3.3% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 25% |
| 7307.91.30 | 00 | Of alloy steel (except stainless steel) | kg | 3.2% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 33% |
| 7307.91.50 | 10 | With an inside diameter of less than 360 mm: | | | | |
| 7307.91.50 | 10 | Of iron or nonalloy steel | kg | | | |
| 7307.91.50 | 30 | Of alloy steel (except stainless steel) | kg | | | |
| 7307.91.50 | 50 | With an inside diameter of 360 mm or more: | | | | |
| 7307.91.50 | 50 | Of iron or nonalloy steel | kg | | | |
| 7307.91.50 | 70 | Of alloy steel (except stainless steel) | kg | | | |
| 7307.92.30 | 10 | Of iron or nonalloy steel | kg | | | |
| 7307.92.30 | 30 | Of alloy steel (except stainless steel) | kg | | | |
| 7307.93 | | Butt welding fittings: | | | | |
| 7307.93.30 | | With an inside diameter of less than 360 mm: | | | | |
| 7307.93.30 | | Of iron or nonalloy steel | | 6.2% | Free (A+,AU,B,BH, CA,CL,D,E,IL,J, JO,MX,P,SG) 4.1% (MA) | 45% |
| 7307.93.30 | 10 | Not machined, not tooled and not otherwise processed after forging | kg | | | |
| 7307.93.60 | 00 | Of alloy steel (except stainless steel) | kg | 5.5% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P, SG) | 45% |
| 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% |
| 7307.93.90 | 10 | Of iron or nonalloy steel: | | | | |
| 7307.93.90 | 10 | Not machined, not tooled and not otherwise processed after forging | kg | | | |
| 7307.93.90 | 60 | Of alloy steel (except stainless steel) | kg | | | |
| 7307.99.10 | 00 | Not machined, not tooled and not otherwise processed after forging: | | | | |
| 7307.99.10 | 00 | Of iron or nonalloy steel | kg | 3.7% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 25% |
| 7307.99.30 | 00 | Of alloy steel (except stainless steel) | kg | 3.2% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 33% |
| 7307.99.50 | 15 | Of iron or nonalloy steel: | | | | |
| 7307.99.50 | 60 | Of alloy steel (except stainless steel) | kg | | | |
| 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: | | | | |
