BIS CERTIFICATION FOR STEEL PIPES FLANGES IS 6392

Published Date: April 10, 2025 4 min Read

BIS certification is essential for Steel Pipe Flanges as per IS 6392:2020. This standard ensures that flanges used in piping systems conform to strict technical and dimensional requirements, enabling safe and leak-proof connections in industrial and infrastructure applications. Certification under IS 6392:2020 validates that the steel flanges are manufactured with precision and are compatible with corresponding pipes and fittings, promoting safety and reliability in pressure piping systems across sectors such as oil & gas, chemical processing, water treatment, and power generation.

IS 6392:2020 – Steel Pipe Flanges

This Indian Standard specifies the requirements for steel pipe flanges including their types, dimensions, tolerances, material specifications, pressure ratings, surface finishes, and markings. The standard covers flanges of various types such as weld neck, slip-on, blind, socket weld, lapped, threaded, and integral flanges. It also provides classification based on pressure-temperature ratings ranging from PN 2.5 to PN 400. IS 6392:2020 ensures compatibility with mating flanges and gaskets, and prescribes detailed manufacturing and inspection criteria including tests for dimensional accuracy, flatness, and materials compliance. These specifications are vital for ensuring proper sealing and performance under varying temperature and pressure conditions.

Benefits of BIS Certification for Steel Pipe Flanges

BIS certification under IS 6392:2020 guarantees that steel flanges meet the highest benchmarks for dimensional accuracy, material quality, and operational safety. For manufacturers, it boosts credibility, opens doors to public sector and industrial projects, and ensures compliance with Indian regulatory frameworks. For users and industry professionals, certified flanges provide assurance of dependable performance, interchangeability, and long-term safety, reducing the risks of failure or leakage in critical pipeline systems. Certification also promotes standardization across projects, simplifying procurement and installation processes.

Key highlights

Product Name	Steel Pipes Flanges
Applicable Indian Standard	IS 6392:2020
Applicable Certification Scheme	Product Certification Scheme (ISI Mark Scheme) Scheme 1 - Schedule 2
Compliance Requirement	Mandatory
Quality Control Order	Click here
Scope as per Standard	This standard specifies the requirements for welded and seamless stainless steel tubes intended for use in the food and beverage industry.

Note

For Detailed Information about the Procedure for BIS ISI Certification, Visit :

Visit :

Procedure for Domestic Manufacturer
Procedure for Foreign Manufacturer

Timeline for BIS Certification

The estimated timeline for obtaining BIS certification under IS 6392:2020 is as follows:

For Indian Manufacturers (Standard Timeframe – 30 days)
For Foreign Manufacturers (Standard Timeframe – 180 days)

Conclusion

BIS certification under IS 6392:2020 plays a crucial role in ensuring the quality, safety, and reliability of steel pipe flanges used in demanding applications. Compliance with this standard reflects a manufacturer’s commitment to delivering high-performance products that meet national and industrial expectations.

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