The steel piping system is used in the construction of buildings and structures, plumbing systems, industrial establishments and infrastructure projects. The basic structure of such pipe systems is made up of steel tubes that offer durability and flexibility for construction. They are useful in pipeline and framework constructions due to their high capacity to withstand pressure, load and environmental factors.
Certain technical specifications must be met to ensure the reliability of the fittings. IS 1239 (Part 1):2014 lays down the criteria for the specification of steel pipes for engineering purposes and piping systems in terms of material properties, dimensionality, tensile strength, surface finishing, among others. With the certification of BIS, every product is tested to ensure the safety and reliable functioning of the pipes in the application.
What is IS 1239 (Part 1): 2014?
This is the Indian Standard for steel tubes used for water, gas, air, and general structural and plumbing applications. It outlines the mechanical properties to ensure safe and reliable performance in pressure and non-pressure applications. As per the BIS (Bureau of Indian Standards), these steel tubes are:
- Evaluated for tensile strength
- Tested for bending performance
- Checked for dimensional accuracy
- Assessed for hydrostatic pressure resistance
Seamless Steel Tube Eligibility Criteria for BIS Approval
BIS authorisation under IS 1239 (Part 1): 2014 is required for businesses involved in manufacturing, importing, or supplying Steel Tubes in India.
Applicable to:
- Manufacturers (India) - Must get BIS approval if the products are covered under QCO.
- Foreign Manufacturers - Need certification to export the product to India.
- Importers/Brand Owners - Must ensure that the products are BIS-certified before sale.
- Sellers/Distributors - Should only sell certified industrial Steel tubes.
Testing and Inspection Requirements
To ensure consistent performance of steel tubes used in water wells, including borewells and tube wells for groundwater extraction, the Bureau of Indian Standards outlines the minimum requirements under IS 1239 (Part 1): 2014. This certification ensures that manufacturers produce steel tubes with adequate strength for long-term use. The BIS testing parameters and quality checks for the steel tubes are listed below:
| Test Group | What is Tested | Purpose |
|---|
| Chemical Composition Test | Percentage of carbon, sulphur, phosphorus, manganese and other alloying elements in steel | Ensures material conforms to IS 1239 chemical requirements and maintains required steel quality |
| Tensile Strength Test | Ultimate tensile strength, yield strength and elongation of steel tubes | Ensures mechanical strength and suitability for structural and pressure applications |
| Bend Test | Ability of tube to withstand bending without cracks or rupture | Ensures ductility and flexibility of steel tubes during installation |
| Flattening Test | Resistance of tube to flattening under compressive load | Ensures structural integrity and weld quality (especially for welded tubes) |
| Hydrostatic Pressure Test | Leak resistance under internal water pressure | Ensures tubes can withstand pressure without leakage or failure |
| Dimensional & Tolerance Test | Outer diameter, wall thickness, length and straightness | Ensures dimensional accuracy and proper fitment in piping systems |
| Weld Seam Test | Quality and integrity of welded seam in ERW/HFW tubes | Ensures defect-free welding and long-term durability of welded tubes |
| Thread & Socket Test | Accuracy of threading and socket fitting (where applicable) | Ensures proper jointing and leak-proof connections |
| Galvanizing Test | Zinc coating thickness, uniformity and adhesion | Ensures corrosion resistance and long service life in harsh environments |
| Leak Proof Test | Leakage check under applied test pressure | Ensures safe performance in water, air, and fluid transport applications |
| Protective Coating Test | Quality of bituminous or other protective coatings | Ensures corrosion protection and durability during storage and usage |
How to get BIS License for Steel Tubes?
The BIS Authorisation process ensures that the general-purpose steel tubes meet the required standards for proper and efficient operation. This process is set by the Bureau of Indian Standards (BIS) and includes the following steps:
- Online Registration: Manufacturers register on the BIS Manak portal by submitting company, factory, and product details. Foreign manufacturers must appoint an Authorized Indian Representative (AIR).
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories for mechanical strength, dimensional accuracy, wall thickness, material composition, hydrostatic pressure resistance and corrosion resistance.
- Application Submission: The application is submitted along with test reports, technical documents, and factory details. Foreign manufacturers must also submit AIR-related documents.
- Factory Inspection: BIS officials carry out an on-site inspection of the manufacturing unit to verify the production process, safety measures, and quality control system.
- Grant of BIS License: Once all compliance requirements are satisfactorily verified, BIS grants the certification license under Scheme-I.
- Use of ISI Mark: After approval, the manufacturer is permitted to use the ISI Mark on the product along with a valid CM/L number, confirming that the product meets BIS standards.
Documents for IS 1239 (Part 1): 2014 License
| Document Category | Documents Required |
|---|
| Basic Details | GST Certificate, Email ID & Contact Number, Factory & Office Address, Rent Agreement / Lease Deed (if applicable),Partnership Deed (if applicable for partnership firms) |
| Manufacturing Details | List of Machinery, Process Flow Chart, Factory Layout Plan |
| Raw Material Details | List of Raw Materials, Supplier Details, Raw Material Invoices, Raw Material Test Certificates |
| Testing & Quality Control | List of Testing Equipment, Calibration Certificates, QC/Lab In-charge Appointment Letter & Qualification |
| Production Details | Annual Installed Capacity, Last Year Production Value |
| Product & Packaging Details | Quantity per Package, Nature of Packing, Product Printing / Marking Details |
| Management Details | Top Management Details, BIS Communication Contact Person |
| Brand & Certification Documents | Trademark / Brand Certificate, Consent Letter from BIS Recognized Laboratory |
| Additional Documents | Weekly Off Details, Hygiene Document (if applicable), Relaxation Letter (if applicable), Any Other Relevant Document |
| Foreign Manufacturer Requirement | Appointment of Authorized Indian Representative (AIR) for BIS coordination and compliance in India |
The Foreign manufacturers must designate an Authorized Indian Representative (AIR) in India. The representative is the local point of contact for the Bureau of Indian Standards (BIS) and manages all compliance and regulatory requirements in India.
Marking Requirements & License Validity
Marking Requirements
After obtaining a BIS licence, the ISI Mark for mild steel tubes must be clearly and permanently marked on its packaging or on the product. Along with the ISI Mark, important details such as the manufacturer’s identification and licence number (CM/L) must also be indicated. This ensures the product complies with prescribed safety and quality standards. Further details are mentioned below:
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and conforms to standards |
| Standard Number | IS 1239 (Part 1): 2014 |
| CML Number | Certification Marks License (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note: Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.
BIS License Validity for Steel Pipes
| particulars | Details |
|---|
| Initial Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillane | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license |
Fees for Seamless Steel Tubes BIS Approval
The cost of a BIS License for tubes includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.
| Charge Type | Indian Manufacturers | Foreign Manufacturers |
|---|
| Application Fee | INR 1,000 | USD 15 |
| Audit Charges | INR 7,000 | USD 3,200 – 5,900 |
| License Fee | INR 1,000 | USD 15 |
| Marking Fee | As applicable | As applicable |
| Testing Charges | As applicable | As applicable |
| EVTL India Consultancy Fee | As per actual | As per actual |
Note:
- Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
- Audit charges for foreign manufacturers vary based on country/location.
- The marking fee is determined based on the product category and production volume (MSME benefits may apply).
- Testing charges are to be paid directly to BIS-recognised laboratories.
- Consultancy fees can vary depending on product type and factory location.
Conclusion
Steel pipes and tubes should remain strong, durable, and stable in the long run to ensure consistent performance. The BIS Certification in accordance with IS 1239 (Part 1):2004 shows that the quality of steel tubes is assessed on mechanical resistance and other properties. Steel tubes, which are certified, are usually more efficient and safe in terms of usage as they are more likely to function properly, ensuring efficient operations BIS Certification for steel pipes requires precise fulfillment of various tasks related to product documentation, testing, and evaluation. When dealing with certification issues related to steel pipes, companies may find it easier to get help from third parties who specialize in this field. In this regard, EVTL India offers its support in obtaining BIS certification for the steel tubes.
