7306.30 - Other, welded, of circular cross section, of iron or nonalloy steel:

Sub-classifications

• 7306 3010 00

  Having a wall thickness of less than 1.65 mm 🖩
• › Having a wall thickness of 1.65 mm or more:
  • 7306 3030 00

    Tapered steel pipes and tubes principally used as parts of illuminating articles 🖩
  • 7306 3050

    › Other
    • 7306 3050 10

      Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters, whether or not cold drawn 🖩
    • 7306 3050 15

      Other, cold-drawn 🖩
    • 7306 3050 20

      Other, cold-rolled (cold-reduced) with a wall thickness not exceeding 2.54 mm 🖩
    • › Other:
      • › With an outside diameter not exceeding 114.3 mm:
        • › Galvanized:
          • › Imported with coupling:
            • 7306 3050 26

              With an outside diameter not exceeding 50.8 mm 🖩
            • 7306 3050 27

              With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mm 🖩
          • 7306 3050 28

            Internally coated or lined with a non-electrically insulating material, suitable for use as electrical conduit 🖩
          • › Other:
            • 7306 3050 31

              With an outside diameter not exceeding 50.8 mm 🖩
            • 7306 3050 33

              With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mm 🖩
        • › Other:
          • 7306 3050 35

            Tube and pipe hollows for redrawing 🖩
          • › Imported with coupling:
            • 7306 3050 41

              With an outside diameter not exceeding 50.8 mm 🖩
            • 7306 3050 43

              With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mm 🖩
          • › Other:
            • 7306 3050 56

              With an outside diameter not exceeding 50.8 mm 🖩
            • 7306 3050 57

              With an outside diameter exceeding 50.8 mm but not exceeding 114.3 mm 🖩
      • › With an outside diameter exceeding 114.3 mm but not exceeding 406.4 mm:
        • 7306 3050 85

          Galvanized 🖩
        • 7306 3050 90

          Other 🖩