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- BIS certification under IS 6003:2010 is mandatory for indented wire used in pre-stressed concrete.
- The standard ensures wire quality in terms of strength, indentation, and relaxation.
- Certification involves testing, factory inspection, and ISI mark approval.
- It builds credibility and avoids project or import delays.
- Consistent testing, record-keeping, and proper marking ensure ongoing compliance.
Introduction
The BIS certification for Indented Wire for Pre-stressed Concrete under IS 6003:2010 confirms the wire meets the strength, ductility and indentation requirements needed for important concrete structures. It indicates the product was tested and subjected to the necessary quality control activities for performance and safety in bridge, metro and precast applications. For manufacturers it provides a government regulation, demonstrate compliance, customer confidence, and government acceptance, eventually leading to wider
What is IS 6003:2010?
IS 6003:2010 the specification from the Bureau of Indian Standards (BIS) for indented steel wire for use in pre-stressed concrete applications. The specification encompasses all the necessary qualification in strength, ductility and surface indent to ensure bonding and performance – a similar level of assurance that the industry accepts for all materials used for structural purposes.
Key Points:
- Includes, indented, hard drawn and stress relieved steel wire for use in pre-stressed concrete.
- Specifies wire diameters from (2.5 mm to 8.0 mm) and indent geometry to develop appropriate bonding.
- Defines the mechanical properties of the wire including, tensile strength, proof stress, elongation and relaxation.
- Defines the limits on chemical composition to ensure homogeneous and durable performance. ISI MARK
Why is BIS Certification Mandatory
- The purpose of BIS Certification is to signify safety and reliability and ensure the wire strength and performance are appropriate for its use in pre-stressed concrete structures.
- BIS Certification helps to ensure consistency across manufacturers and if the manufacturer’s process and product are compliant with IS 6003:2010.
- BIS Certification protects against the use of counterfeit or inferior materials that could be used in key infrastructure projects.
- BIS marking and licence numbers allow for traceability and accountability.
- BIS Certification is mandated under the Steel and Steel Products (Quality Control) Order and thus, certification will be mandatory to manufacture, sell, or import the products in India.
Importance & Benefits of BIS Certification
| Importance | Benefits |
| Ensures compliance with IS 6003:2010 standards | Guarantees consistent wire strength, bonding, and durability |
| Protects structural integrity in pre-stressed concrete | Reduces risk of failure in bridges, metro lines, and precast elements |
| Mandatory under BIS Quality Control Orders | Allows legal manufacturing, sale, and import in India |
| Promotes quality assurance and accountability | Minimizes rejections, rework, and testing delays |
| Builds industry and client confidence | Enhances brand reputation and tender eligibility |
Step by Step process of BIS Certification
Step1:Documentation
- Collect the necessary documentation from your company and factory, which includes your company layout, machinery, and manufacturing process flow.
- Collect quality control records, calibration certificates and any internal test data that does not conform to IS 6003:2010.
- Collect certificates for all tests completed on the raw materials and markings indicating indentations on drawings.
- Be certain that all documents are signed and verified and ready for submission to the audit, which will be completed by a BIS subset licensed auditor.
Step2:Product Testing
- Submit a sample of your product to a BIS recognized test lab for required testing.
- Tests will include, and not be limited to, tensile strength, proof stress, elongation, indentations completed, and relaxation in compliance with IS 6003:2010.
- Document traceability of the sample tested to the associated product batch.
- The testing lab will provide a sample specific testing report signed by that lab that states the sample tested fully complied with the requirements of all of the parameters of the applicable standard.
Step3:Application Submission
- Apply online via the BIS Manak Online Portal under the ISI Mark Scheme (Scheme-I).
- Attach all supporting documents and the BIS lab test report.
- Pay the required application and marking fees.
- Clearly define the scope of licence—wire sizes, indent types, and production site.
Step4:Scrutiny and Inspection
- BIS officials review all documents and evaluate the test report for compliance.
- A factory inspection is scheduled to verify production setup, testing equipment, and quality systems.
- Inspectors check sample preparation, marking procedures, and traceability records.
- Any non-conformities found must be corrected and revalidated before licence approval.
Step5:Grant of License
- After successful evaluation, BIS issues the license to use the ISI mark for the approved product range.
- Each coil must display the ISI mark, licence number, and control unit identification.
- The manufacturer must maintain ongoing quality control and submit periodic test results.
- BIS conducts surveillance audits and renewal inspections to ensure continued compliance.
Documents Required for BIS Certification
| Category | Required Documents |
| Company Details | Registration Certificate, GST, PAN, Udyam/MSME, Import-Export Code (if any) |
| Factory Information | Layout plan, machinery list, production flow chart, capacity details |
| Quality Control | Quality manual, calibration records, internal test reports, QC staff details |
| Raw Materials | Supplier test certificates, chemical analysis, heat/lot traceability |
| Testing Setup | In-house or external BIS-approved lab details, equipment calibration |
| Product Data | Technical drawings, indent pattern, wire sizes, product catalogue |
| Test Reports | BIS-recognized lab report confirming compliance with IS 6003:2010 |
| Marking & Labels | ISI mark layout, batch numbering, and packaging label sample |
| Legal Documents | Authorization letter, manufacturing agreement, declaration form |
Timelines, Costs, Validity & Renewal
- Timelines: Process takes about 6–8 weeks including testing and inspection.
- Costs: Vary by production size and BIS fee structure.
- Validity: Licence valid for 2 years from issue date.
- Renewal: Done every 1–2 years with updated reports.
Why Choose Diligence certifications
Work with a reputable BIS consultancy with robust experience to manufacture certifications for steel and construction products, including Indented Wire, under the IS 6003:2010 standard.
- Expert Guidance: End-to-end support — from document preparation to BIS audit coordination.
- Faster Approval: Streamlined process ensures quicker certification turnaround.
- Technical Expertise: Experienced engineers familiar with BIS testing and compliance standards.
- Transparent Process: No hidden steps; full clarity on documentation and communication with BIS.
- Pan-India Support: Assistance available for both domestic and export-oriented manufacturers.
Conclusion
BIS Certification of Indented Wire for Pre-stressed Concrete under IS 6003:2010 is essential to safety, strength and standardization in India’s construction industry. It ensures that all components of the projects are coordinated, enhances supplier market credibility, and is compliant with regulatory governance.
When suppliers are able to show that they have a BIS Certification, it will build trust with builders, project management and ultimately end-users of the project. When working with a partner such as Diligence Certifications this process will be easy, accurate, reliable and compliant with BIS.
