7305 - Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel:

Sub-classifications

Commodity Code

Description

Line pipe of a kind used for oil or gas pipelines:
- 7305 11
  
  Longitudinally submerged arc welded:
  - 7305 1110
    
    Of iron or nonalloy steel
    
    7305 1110 30
    
    With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm
    
    7305 1110 60
    
    With an external diameter exceeding 609.6 mm
  - 7305 1150 00
    
    Of alloy steel
- 7305 12
  
  Other, longitudinally welded:
  - 7305 1210
    
    Of iron or nonalloy steel
    
    7305 1210 30
    
    With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm
    
    7305 1210 60
    
    With an external diameter exceeding 609.6 mm
  - 7305 1250 00
    
    Of alloy steel
- 7305 19
  
  Other:
  - 7305 1910
    
    Of iron or nonalloy steel
    
    7305 1910 30
    
    With an external diameter exceeding 406.4 mm but not exceeding 609.6 mm
    
    7305 1910 60
    
    With an external diameter exceeding 609.6 mm
  - 7305 1950 00
    
    Of alloy steel
7305 20

Casing of a kind used in drilling for oil or gas:
- Of iron or nonalloy steel:
  - 7305 2020 00
    
    Threaded or coupled
  - 7305 2040 00
    
    Other
- Of alloy steel:
  - 7305 2060 00
    
    Threaded or coupled
  - 7305 2080 00
    
    Other
Other, welded:
- 7305 31
  
  Longitudinally welded:
  - 7305 3120 00
    
    Tapered pipes and tubes of steel principally used as parts of illuminating articles
  - Other:
    
    7305 3140 00
    
    Of iron or nonalloy steel
    
    7305 3160
    
    Of alloy steel
    
    7305 3160 10
    
    Of stainless steel
    
    7305 3160 90
    
    Other
- 7305 39
  
  Other:
  - 7305 3910 00
    
    Of iron or nonalloy steel
  - 7305 3950 00
    
    Of alloy steel
7305 90

Other:
- 7305 9010 00
  
  Of iron or nonalloy steel
- 7305 9050 00
  
  Of alloy steel

Overview

This HTS category, 7305, encompasses large-diameter tubes and pipes made of iron or steel. The defining characteristic for classification here is a circular cross-section with an external diameter exceeding 406.4 mm. The method of closure for these tubes, whether welded, riveted, or similarly joined, is a secondary consideration, as the primary focus is on their substantial size and material composition. This heading specifically excludes smaller diameter tubes and pipes and those with non-circular cross-sections, which would fall under different HTS headings.

When differentiating 7305 from its sibling categories within Chapter 73, it is crucial to note that this heading is distinct from articles like rails, railway or tramway track construction material (7302), or specific types of pipes and tubes with diameters not exceeding 406.4 mm (7303, 7304, 7306). The sheer scale of the diameter is the key differentiator for this grouping.

The subcategories within 7305 provide further detail on the intended use and construction of these large-diameter pipes. For instance, distinctions are made for line pipe specifically designed for oil or gas pipelines, highlighting the critical role these conduits play in energy infrastructure. Casing used in oil and gas drilling operations is also separately classified, recognizing its unique application in resource extraction. Finally, further subdivisions exist to differentiate between other welded constructions and other types of pipes and tubes within this large-diameter category, allowing for precise tariff application based on specific manufacturing techniques and additional uses.

Go up to Chapter 73: Articles of iron or steel

7305 - Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel:

Sub-classifications

Overview

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