ERW Pipe HSN Code (7306): HS Code Classification Guide for Steel Pipes

1. What Is the HSN Code for ERW Pipe?

Most ERW steel pipes are classified under HS Code 7306, a tariff heading covering welded steel tubes, pipes, and hollow sections. Because ERW pipe is produced from steel coil and formed through a welding process, it is generally distinguished from seamless pipe, which falls under HS Code 7304.

HS Code 7306 is a broad tariff heading rather than a single declaration code. Different subheadings are used for carbon steel pipe, alloy steel pipe, square tube, rectangular tube, and other welded tubular products.

The table below lists the HSN codes most commonly associated with ERW steel pipe products and related welded steel sections.

2. ERW Pipe HSN Code List

Final classification should be confirmed against the importing country's tariff schedule. The exact classification may vary depending on the product specification and local customs requirements, but these codes are frequently referenced in international trade and customs declarations.

Among these classifications, codes such as 73063090, 73065000, 73066100, and 73069090 are commonly seen in customs documents for steel pipe exports.

3. How to Choose the Correct HSN Code for ERW Pipe

For ERW pipe, the HSN code is determined by the pipe’s actual characteristics, not by the term “ERW” alone. Classification is generally based on material, shape, and manufacturing method.

3.1 Material

① Carbon steel ERW pipe

Most carbon steel ERW pipes are classified under HS Code 7306.

② Alloy steel ERW pipe

If the pipe contains alloying elements such as chromium, molybdenum, or nickel, Alloy steel ERW pipes are often classified under different 7306 subheadings according to their chemical composition.

③ Galvanized ERW pipe

The zinc coating can affect classification in some tariff schedules. In many cases, galvanized welded tubes are declared under a separate subheading from uncoated carbon steel pipe.

3.2 Shape

① Round ERW pipe

Standard round pipe is the baseline product type under heading 7306 and is widely used for pipelines, structural work, and mechanical applications.

② Square and rectangular hollow sections

These are classified separately from round pipe in many customs systems because they are considered structural hollow sections rather than ordinary round tubing.

3.3 Manufacturing Method

Welded pipes, including ERW, SSAW, and LSAW products, are generally classified under HS Code 7306.

Seamless steel pipe is classified under HS Code 7304.

4. ERW Pipe HS Code vs Seamless Pipe HS Code

The key difference in customs classification is whether the pipe is welded or seamless.

ERW pipe is manufactured from steel strip or coil and joined by electric resistance welding. As a welded tubular product, it is classified under HS Code 7306.

Seamless pipe is produced from a solid steel billet without a longitudinal weld seam. It falls under HS Code 7304, which covers seamless tubes, pipes, and hollow profiles.

When declaring steel pipe for customs clearance, the manufacturing method is one of the primary factors used to determine whether heading 7304 or 7306 applies. Product specifications, mill certificates, and purchase documents are commonly used to verify the correct classification.

5. Common HS Classification Errors for ERW Pipe

Most HS code errors for ERW pipe are caused by incorrect product descriptions rather than the code itself.

Common issues include:

① Declaring welded ERW pipe as seamless pipe.

② Using the same classification for carbon steel and alloy steel products.

③ Omitting pipe shape when declaring square or rectangular hollow sections.

④ Providing only the product name "ERW pipe" without material grade, dimensions, or manufacturing details.

6. Example of an ERW Pipe Customs Description

A customs declaration for ERW pipe typically includes the product type, material grade, dimensions, country of origin, and HS code.

Example:

ERW Carbon Steel Pipe

ASTM A53 Grade B

Outside Diameter: 114.3 mm

Wall Thickness: 6.02 mm

Length: 6 m

HS Code: 73063090

Country of Origin: China

Depending on the importing country, additional details such as coating type, end finish, or product standard may also be required.

7. FAQS

Q1: What is HS code 73063090?

73063090 is a commonly used tariff code for certain welded steel pipes, including many ERW pipe products. The exact classification may vary depending on national tariff schedules.

Q2: Are square ERW tubes classified differently from round ERW pipes?

Yes. Many customs tariff systems use separate subheadings for square and rectangular hollow sections. Although both products fall under HS Code 7306, the final classification may differ.

Q3: Does galvanized ERW pipe use a different HS code?

Galvanized ERW pipe is generally classified within HS Code 7306. Depending on the country's tariff schedule, the coating may affect the final subheading used for customs declaration.

Q4: Is the HS code the same in every country?

The first six digits are based on the international Harmonized System (HS) and are generally consistent worldwide. Many countries add additional digits for national tariff and statistical purposes.

Read more: ERW Pipe Specifications and Models or Seamless pipe vs erw pipe