Harmonized System Code Classification

The first two digits of the HS code "73" represent steel products.

Specifically, this chapter includes the following main contents:

• Steel structural components: For example, bridges, buildings, towers, etc.
• Cast iron products: For example, pipes, pipe fittings, radiators, etc.
• Steel products: For example, steel plates, steel pipes, steel wires, nails, bolts, nuts, etc.
• Other steel products: For example, springs, chains, fasteners, tools, etc.

Reason for classification:

The establishment of the "73" chapter is to classify and manage various products made primarily of steel. These products typically have the following characteristics:

• Main material is steel: The core component of the product is steel.
• Wide range of applications: Steel products are widely used in construction, machinery, transportation, energy, and other industries.
• Different manufacturing processes and product forms: Steel products can be manufactured through casting, forging, rolling, welding, and other processes, and can take various forms and functions.

Therefore, the first two digits of the HS code "73" are used to identify and classify all products made primarily of steel.

If you can provide a more specific HS code (for example, 7304, 7310, etc.), I can provide a more detailed classification explanation.

First four digits explanation: HS Code: 7306

Classification Description: Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel.

Six-digit explanation: Classification: Other tubes, profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel.

Specific meaning:

• 7306.30: Refers to other tubes, profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel, further subdivided into:
  • Welded, circular cross-section, of iron or non-alloy steel
    • Wall thickness of 1.65 mm or more
      • Other
        • Outside diameter exceeding 114.3 mm but not exceeding 406.4 mm
          • Other

8-10 digit explanation: HS Code: 7306305026 Classification: Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: --> Other, welded, of circular cross section, of iron or nonalloy steel: --> Having a wall thickness of 1.65 mm or more: --> Other: --> Other: --> With an outside diameter not exceeding 114.3 mm: --> Galvanized: --> Imported with coupling: --> With an outside diameter not exceeding 50.8 mm

Explanation: This HS code belongs to other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel. Specifically, it refers to welded, circular cross-section, of iron or non-alloy steel, with a wall thickness of 1.65 mm or more, outside diameter not exceeding 114.3 mm, galvanized, imported with coupling, and outside diameter not exceeding 50.8 mm products.

Examples of products: * Galvanized steel pipes with a diameter of 50.8 mm or less * Steel tubes with a wall thickness of 1.65 mm or more * Welded steel tubes with a circular cross-section * Steel pipes used for industrial or construction purposes, with coupling * Steel tubes used for plumbing or water supply systems