| 7306.29.81 | 10 | Imported with coupling | kg | | | |
| 7306.30.50 | 20 | Other, cold-rolled (cold-reduced) with a wall thickness not exceeding 2.54 mm | kg | | | |
| 7306.30.50 | 25 | With an outside diameter not exceeding 114.3 mm: | | | | |
| 7306.30.50 | 25 | Imported with coupling | kg | | | |
| 7306.30.50 | 28 | Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit | kg | | | |
| 7306.30.50 | 40 | Other, imported with coupling | kg | | | |
| 7306.30.50 | 85 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm: | | | | |
| 7306.40.50 | 62 | With an outside diameter not exceeding 114.3 mm: | | | | |
| 7306.40.50 | 85 | With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm: | | | | |
| 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 | | | |
| 7307.19.30 | 70 | With mechanical, push-on (rubber compression) or flanged joints attached | kg | | | |
| 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: | | | | |
| 7307.93.30 | | 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% |
| 7309.00.00 | | Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment | | Free | | 45% |
| 7310 | | Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment: | | | | |
| 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: | | | | |
| 7312.10.05 | 00 | Fitted with fittings or made up into articles | kg | Free | | 45% |
| 7312.10.20 | 00 | Fitted with fittings or made up into articles | kg | Free | | 45% |
| 7312.10.30 | 70 | Covered with textile or other nonmetallic material | kg | | | |
| 7312.10.30 | 10 | Covered with textile or other non- metallic material | kg | | | |
| 7312.10.50 | 00 | Fitted with fittings or made up into articles | kg | Free | | 45% |
| 7312.10.60 | 30 | With a diameter not exceeding 9.5 mm | kg | | | |
