What is the HSN code for SS 304 pipe?

Mar 25, 2026

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In the realm of international procurement, the successful delivery of goods often hinges upon those four critical digits. Accurately identifying the HSN Code for SS 304 piping is not merely a matter of taxation; it is fundamentally about ensuring legal compliance and avoiding anti-dumping penalties.

 

Whether you are importing a full container load of ASTM A312 TP304 piping or filing your monthly Goods and Services Tax (GST) returns, the Harmonized System of Nomenclature (HSN) Code remains the single most critical data element at your disposal. While 304 stainless steel is the most widely utilized steel grade globally, its specific HSN classification is strictly determined by its precise manufacturing process.

 

What is the HSN code for SS 304 pipe?

For Stainless Steel 304 pipes, the HSN code falls under Chapter 73 (Articles of Iron or Steel). The specific code is determined by whether the pipe is Seamless or Welded.

Pipe Type HSN Code (4-Digit) HSN Code (6/8-Digit) Description
Seamless SS 304 Pipe 7304 7304 4100 Cold-drawn or cold-rolled stainless steel seamless pipes.
Welded SS 304 Pipe 7306 7306 4000 Other tubes and pipes, welded, of circular cross-section, of stainless steel.

 

Why is Distinguishing HSN Codes for SS 304 Pipes Crucial?

HSN 7304: Seamless Stainless Steel Tubes
If you are sourcing ASTM A213 or ASTM A312 seamless steel tubes for use in high-pressure heat exchangers or oil and gas pipelines, you must use the HSN 7304 code.
Buyer Tip: Customs authorities verify the manufacturing process of products. Declaring seamless steel tubes under the code designated for welded tubes may result in "misclassification penalties" and cause delays in the clearance and release of goods at the port.

 

HSN 7306: Welded Stainless Steel Tubes
For decorative tubing, structural support components, or pipes used for low-pressure fluid conveyance,specifically those featuring visible (external) or internal weld seams,HSN 7306 is the correct classification code.
Trade Tip: Many countries (such as India, the United States, and the European Union) apply different Anti-Dumping Duties (ADD) based on the aforementioned codes. For instance, the tariff rates applicable to welded steel tubes originating from specific regions may be higher than those applied to seamless steel tubes.

 

 What is the ASME Code for 304 SS pipe?

The primary ASME code for 304/304L stainless steel pipe is ASME SA312 TP304/304L, which covers seamless and welded austenitic pipe for high-temperature and general corrosive service. Dimensional standards are governed by ASME B36.19M (stainless steel pipe schedules)

 

GNEE provides fully compliant export documentation for all stainless steel products. Whether you require 7304 seamless pipes or 7306 welded pipes, we ensure that every Material Test Certificate (MTC) and invoice strictly adheres to global trade standards.
                                                        

Request a Quote for ASTM A312 TP304 Pipes

 

FAQ

Q: Can I use HSN Code 7304 to declare SS 304 stainless steel pipes?
A: Generally, yes. All "pipes" and "tubes" made from seamless stainless steel fall under HSN Code 7304. However, please be sure to verify whether they constitute "hollow profiles," as this specific attribute may result in a slight variation in the 8-digit sub-heading code.

 

Q: Does SS 304L stainless steel correspond to a different HSN Code?
A: No, it does not. Both 304 and 304L fall under the same HSN classification, as they are fundamentally classified as "stainless steel." The letter "L" (standing for "Low Carbon") merely denotes a variation in the material grade, rather than a distinct product category.

 

Q: What are the consequences if an incorrect HSN Code is listed on the Bill of Lading?
A: This may result in the shipment being placed on a Customs Hold. You may be required to pay amendment fees to rectify the error; furthermore, if the correct HSN Code carries a higher applicable duty rate, you could even face fines for suspected tax evasion. Therefore, it is imperative that you always verify and confirm the accurate 8-digit code with your Customs House Agent (CHA).

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