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Published on:

September 12, 2025

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GST Rates and HSN Code for Iron Pipe Fittings (HSN Code 7307)

Advanced industrial operations based on construction and plumbing, together with irrigation and infrastructure, depend on iron pipe fittings for the achievement of their operational targets. Industry standards dictate that iron pipe fittings exist in multiple dimensions, including elbows, tees, flanges, unions, couplings, and reducers for implementing pipe section connections as well as tube size adjustments and fluid flow regulation.

These items require their correct HSN Code together with GST rates for both taxation compliance and correct invoicing in supply operations. The piece presents detailed information regarding the HSN Code 7307 and its linked GST tax levels that affect iron pipe fittings.

What is HSN Code 7307?

Through its member organization, the World Customs Organization created the worldwide accepted HSN (Harmonized System of Nomenclature) coding system for systematic goods classification. Products subject to taxation in India under GST regulations receive their tax treatment through HSN codes that categorize them.

HSN Code 7307 – Description

Chapter 73 in the HSN classification includes Articles of iron or steel under HSN Code 7307.

HSN Code 7307 specifically includes:

Tube or pipe fittings

Made of iron or steel

Used in piping and plumbing systems

Sub-classifications under HSN Code 7307:

HSN Code	Description
7307.21	Flanges of stainless steel
7307.22	Threaded elbows, bends, and sleeves.
7307.23	Butt welding fittings
7307.29	Other fittings

GST Rates Applicable on Iron Pipe Fittings (HSN Code 7307)

This rate applies to most iron and steel pipe fittings as per current GST notifications.

HSN Code	Product Description	GST %	CGST %	SGST %	IGST %
7307.21	Stainless steel flanges	18	9	9	18
7307.22	Threaded elbows, bends, and sleeves	18	9	9	18
7307.23	Butt-weld fittings	18	9	9	18
7307.29	Other fittings (nipples, tees, couplings)	18	9	9	18

‍Note: All fittings, including stainless steel and mild steel inside series 7307, use these rates for taxation purposes.

Also Read about: ‍GST Rate for HSN Code 3917: Tubes, Pipes, Hoses, Fittings

GST Rate on Iron Pipe Fittings (HSN Code: 7307)

The GST Council of India applies distinct tax rates to HSN Code 7307 iron and steel pipe fittings based on their actual nature and usage.

GST Rate: 18%

Under HSN Code 7307 most iron and steel pipe fittings attract an 18% GST rate, which results from merging two basic elements:

CGST: 9%

SGST: 9%

IGST: 18%

Applicable from:

The 18% GST rate has been applicable since 1st July 2017, the date of the rollout of GST in India.

Examples of Items Covered Under HSN Code 7307

Here's a list of commonly used items that fall under this code:

Iron or steel flanges

Elbows and bends (threaded or butt-welded)

Couplings

Reducers

Tees

Pipe caps

Nipples

Bushings

Adapters

Swaged nipples

These fittings are used in a variety of industrial sectors, including:

Oil and gas

Power plants

Water treatment plants

HVAC systems

Fire sprinkler systems

Plumbing in commercial and residential buildings

Important Notes on Classification and GST Applicability

1. Material Composition Matters

Only fittings made of iron or steel are covered under HSN 7307.

Fittings made from plastic, copper, brass, or other materials fall under different HSN codes and may attract different GST rates.

2. Prefabricated or Customized Fittings

The classification as HSN 7307 remains valid for iron or steel pipe fittings that align with the description of general pipe fittings.

3. Anti-dumping Duty

The application of anti-dumping duties and GST occurs for particular stainless-steel pipe fitting categories. This typically applies to imports.

4. Input Tax Credit (ITC)

Low-tax paid by registered GST service companies produces input tax credits that apply toward purchasing fittings when using them for business activities.

GST Calculation Example for Iron Pipe Fittings

Let’s say you are selling iron elbows (HSN 7307) worth ₹10,000.

For Intra-State Sale (within the same state):

CGST @ 9% = ₹900

SGST @ 9% = ₹900

Total GST = ₹1,800

Final Invoice Value = ₹11,800

For Inter-State Sale (between different states):

IGST @ 18% = ₹1,800

Final Invoice Value = ₹11,800

GST Return Filing Implications

Businesses involved in the trading or manufacturing of iron pipe fittings need to ensure:

Proper HSN Code declaration in GSTR-1 (outward supplies)

Accurate tax rates in invoices and returns

Consistent application of Input Tax Credit (ITC) for eligible purchases

Periodic reconciliation of inward and outward supplies

Recent Updates or Clarifications

New updates released by the CBIC alongside the GST Council have not modified the GST rate for iron pipe fittings classified under HSN 7307. The official GST website (www.gst.gov.in), along with consulting tax professionals, serves as the best method to verify current information or circulars regarding the tax.

How to Find GST Rate Using Government Tools

You can verify the applicable GST rate for HSN Code 7307 using the following tools:

CBIC GST Rate Finder
Visit: https://cbic-gst.gov.in

GST Portal Search Tool
Visit: https://www.gst.gov.in/gst-goods-services-rates

Industries and Sectors Using Iron Pipe Fittings

Understanding the scope of application of pipe fittings helps businesses understand the market size and GST implications. These fittings are heavily used in:

Water supply and sewerage systems

Construction and infrastructure

Chemical and fertilizer industries

Refineries and power generation plants

HVAC systems in commercial buildings

Food and beverage manufacturing

Compliance Tips for Traders and Manufacturers

Perform the following recommended steps as an iron pipe fitting trader or manufacturer, or supplier:

Always Mention HSN Code Clearly

Ensure the 7307 HSN Code is mentioned in:

Tax invoices

E-way bills

GST returns

Apply Correct GST Rate (18%)

Applying incorrect GST can lead to penalties or the denial of ITC.

Maintain Purchase Records

Keep records of input invoices to claim Input Tax Credit without discrepancies.

Keep Abreast with Notifications

The GST Council determines the potential alteration of GST rates. Staying updated helps avoid non-compliance.

Summary Table: HSN Code 7307 & GST Details

Particulars	Details
HSN Code	7307
Description	Tube or pipe fittings (iron or steel)
GST Rate	18%
Applicable GST Type	CGST + SGST (intra-state) / IGST (inter-state)
Usage	Plumbing, construction, industry, infrastructure
ITC Eligibility	Yes (for registered businesses)

Conclusion

Accurate tax compliance, together with business efficiency, depends on the GST knowledge regarding iron pipe fittings with HSN Code: 7307. All documentation should include the 18% GST rate because these fittings serve all industrial and commercial sectors.

Businesses that maintain correct classification, together with updated GST notifications, can obtain all Input Tax Credits while minimizing penalties. The business must utilize official GST tools together with a GST practitioner or official online resource to determine the correct rate before issuing invoices.

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FAQs

1. What is the GST rate for iron pipe fittings under HSN Code 7307?

The majority of iron, along with steel products designated by HSN Code 7307, carry a tax liability of 18 %.

2. What items are included under HSN Code 7307?

The HSN Code 7307 consists of iron and steel pipe fittings that contain flanges, along with elbows and reducers, together with tees and couplings.

3. Can I claim Input Tax Credit (ITC) on iron pipe fittings?

ITC claims are accessible for registered businesses when they use fittings for their business operations.

4. Is the GST rate for plastic or copper pipe fittings the same?

Plastic (HSN 3917) and copper (HSN 7412) fittings do carry an 18% GST rate; however, they belong to separate classification systems from the items mentioned above.