Miscellaneous Steel Products
Steel Pipe Flanges
Strategic Recommendations for IS 6392:2020 (Steel Pipe Flanges)
- Begin BIS Certification Immediately
Large enterprises must comply by 27 March 2024; Small enterprises by 27 June 2024; Micro enterprises by 27 September 2024. - Consult Compliance Professionals (ERA)
Partner with ERA experts for BIS application, lab testing coordination, and ISI mark implementation. - Reach Out for Support
📧 cs@eraglobal.co.in | 📞 +91 9599296331 | 💬 WhatsApp
For expert guidance on QCO compliance, lab approvals, and certification process. - Track Notifications & Industry Updates
Subscribe to ERA Newsletter for Stay updated on Monitor BIS updates and Gazette notifications for any amendments or exemptions relevant to steel flange manufacturers. - Ensure ISI Marking & Documentation
All flanges must carry the ISI mark before sale. Export consignments must be separately documented.
| Section | Details |
|---|---|
| Product Name | Steel Pipe Flanges |
| Applicable Indian Standard (IS) No. | IS 6392:2020 |
| Title of Indian Standard | Steel Pipe Flanges – Specification |
| Quality Control Order | Miscellaneous Steel Products (Quality Control) Order, 2023 |
| Notification & Amendments | Notified via S.O. 4240(E), dated 25 September 2023 |
| Final Enforcement Date |
Large Enterprises: 27 March 2024 (6 months from notification) Small Enterprises: 27 June 2024 (9 months from notification) Micro Enterprises: 27 September 2024 (12 months from notification) |
| Objective & Scope | To ensure strength, safety, and durability of steel pipe flanges through mandatory BIS certification. |
| Products Covered | Steel pipe flanges of various pressure ratings and dimensions as per IS 6392:2020. |
| Exemptions | Goods manufactured exclusively for export are exempt. |
| Industries Impacted |
- Steel Forging & Fabrication Units - Oil & Gas, Petrochemical & Refinery Sector - Power Plants & Boilers - Water Supply & Infrastructure Projects |
| Mandatory Compliance | Conformity to IS 6392:2020, ISI marking mandatory, BIS license under Scheme-I of BIS (Conformity Assessment) Regulations, 2018. |
| Next Steps for Stakeholders | Apply for BIS license, complete testing in BIS-recognized labs, ensure ISI marking on all flanges before sale, declare export goods separately. |
| Legal Framework Provision & Enforcement | Enforced under BIS Act, 2016; BIS is the certification & enforcement authority. |
| Penalties for Non-Compliance | Punishable under BIS Act, 2016: seizure of goods, fines, suspension/cancellation of license, imprisonment up to 2 years. |
| Conclusion | BIS certification under IS 6392:2020 is mandatory for all steel pipe flanges sold in India by respective enforcement deadlines. |
| References / Annexures | Miscellaneous Steel Products (Quality Control) Order, 2023 – S.O. 4240(E), dated 25 September 2023 |
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Notification
Steel pipe flanges covered under the Miscellaneous Steel Products (Quality Control) Order, 2023, issued via S.O. 4240(E), dated 25 September 2023 by the Ministry of Commerce & Industry under the BIS Act, 2016.
Enforcement Timeline
- Large Enterprises: 27 March 2024 (6 months from notification)
- Small Enterprises: 27 June 2024 (9 months from notification)
- Micro Enterprises: 27 September 2024 (12 months from notification)
Overview
Steel pipe flanges are essential components used to connect pipes, valves, pumps, and other equipment in oil & gas, water supply, petrochemical, and power generation sectors. Quality assurance is critical since these flanges operate under pressure and harsh environments.
Objective & Scope
The objective of IS 6392:2020 is to regulate and standardize the design, dimensions, materials, and testing of steel pipe flanges to ensure safe operation, interchangeability, and durability in industrial applications.
Products Covered
The standard covers steel pipe flanges of various types, pressure classes, and dimensions used in piping systems across industries.
Exemptions Provided
The Order does not apply to products manufactured exclusively for export.
Industries Impacted
- Steel Forging & Fabrication Manufacturers
- Oil & Gas Pipelines and Refineries
- Power Plants & Boiler Systems
- Water Supply & Sewage Infrastructure Projects
Mandatory Compliance Requirements
All steel pipe flanges must conform to IS 6392:2020 and carry the ISI mark under a BIS license as per Scheme-I of BIS (Conformity Assessment) Regulations, 2018.
Next Steps for Stakeholders​
 Manufacturers must:
- Apply to BIS for certification,
- Conduct testing in BIS-approved laboratories,
- Ensure ISI marking on all flanges before distribution or sale,
- Maintain export documentation separately for exemption claims.
Legal Provisions, Enforcement & Penalties
- Â BIS is the enforcing authority under the BIS Act, 2016.
- Violations may lead to product seizure, fines, license suspension/cancellation, and imprisonment up to 2 years.
Conclusion
 From March–September 2024, depending on enterprise size, manufacturers of steel pipe flanges must obtain BIS certification under IS 6392:2020. The Order ensures consistent quality, safety, and reliability of steel flanges used in critical industrial and infrastructure sectors.
Ready to start your certification journey?
Let us help you navigate regulatory challenges and achieve certification with ease. Leave us your details, and we’ll get back to you—or request a free consultation today.