7304.59.80 | 20 | Having a wall thickness of 6.4 mm or more but not exceeding 12.7 mm | kg | | | |
7304.59.80 | 25 | Having a wall thickness exceeding 12.7 mm | kg | | | |
7304.59.80 | 30 | Having a wall thickness less than 12.7 mm | kg | | | |
7304.59.80 | 45 | Having a wall thickness less than 12.7 mm | kg | | | |
7304.59.80 | 50 | Having a wall thickness of 12.7 mm or more but less than 19 mm | kg | | | |
7304.59.80 | 55 | Having a wall thickness of 19 mm or more | kg | | | |
7304.59.80 | 60 | Having a wall thickness less than 12.7 mm | kg | | | |
7304.90.10 | 00 | Having a wall thickness of 4 mm or more: | | | | |
7304.90.10 | 00 | Of iron or nonalloy steel | kg | Free | | 1% |
7304.90.30 | 00 | Of alloy steel | kg | Free | | 8.5% |
7304.90.50 | 00 | Having a wall thickness of less than 4 mm: | | | | |
7304.90.50 | 00 | Of iron or nonalloy steel | kg | Free | | 25% |
7304.90.70 | 00 | Of alloy steel | kg | Free | | 35% |
7305.11 | | Longitudinally submerged arc welded: | | | | |
7305.11.10 | | Of iron or nonalloy steel | | Free | | 5.5% |
7305.11.50 | 00 | Of alloy steel | kg | Free | | 10% |
7305.12 | | Other, longitudinally welded: | | | | |
7305.12.10 | | Of iron or nonalloy steel | | Free | | 5.5% |
7305.12.50 | 00 | Of alloy steel | kg | Free | | 10% |
7305.19.10 | | Of iron or nonalloy steel | | Free | | 5.5% |
7305.19.50 | 00 | Of alloy steel | kg | Free | | 10% |
7305.20.20 | 00 | Of iron or nonalloy steel: | | | | |
7305.20.60 | 00 | Of alloy steel: | | | | |
7305.31 | | Longitudinally welded: | | | | |
7305.31.20 | 00 | Tapered pipes and tubes of steel principally used as parts of illuminating articles | kg | Free | | 45% |