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When buildings rise, bridges span rivers, or towers stretch skyward, steel often shapes their bones. But not all steel is the same. Some steel types bear loads and form the very structure of what we build. For those kinds safety isn’t optional. It’s critical. That’s where BIS certification under IS 4923 steps in. It ensures that Hollow Steel Sections for Structural Use meet strict Indian standards before entering the market
IS 4923 isn't just a number. It’s a code of trust. It tells buyers and builders that the steel they use is strong, safe, and fit for structural use. And the Bureau of Indian Standards (BIS) is the authority that grants this seal. If your company manufactures or imports hollow steel sections meant for structural work in India, getting BIS certification is not just beneficial—it’s mandatory.
In this article, we will explain the complete process to obtain BIS certification under IS 4923
The IS 4923 Standard covers cold-formed hollow steel sections used in buildings. Square, rectangular or round steel sections are commonly used in buildings, flyovers, industries and major steel structures
As a result of the BIS testing process, a certification indicates that the product has undergone testing for its physical dimensions, mechanics, chemical properties and performance. A manufacturer can place the ISI mark only after finishing this process.
This certification applies to the following entities:
Let’s now explore how you can get BIS certification under IS 4923. This process includes both documentation and technical assessments.
You must apply online through the BIS Manak Portal. The manufacturer or their authorized Indian representative (AIR) must register and create an account. Here’s what this step involves:
Once submitted, BIS will verify your application.
The documentation should be complete and accurate. Below are the key documents required:
Keep copies of all originals ready for inspection.
After your application is accepted, BIS schedules a factory audit. An officer visits your production unit to:
If your facility fails to meet the standard, BIS may issue a non-conformity report (NCR), which must be corrected within a deadline.
Samples collected during the audit are sent to a BIS-recognized lab. The lab conducts tests to confirm:
Only when the test results meet the IS 4923 standard can your product qualify.
If all tests pass and the factory meets the standard, BIS grants the ISI certificate. This includes:
This license is valid for one year, and you must apply for renewal annually by submitting fresh documents and test results.
To keep your certification valid, you must renew it before expiry. The renewal process is easier if there have been no major non-conformities. You’ll need to submit:
In some cases, BIS may re-inspect the factory before renewing.
Selling non-certified hollow steel sections in India is a legal violation. The consequences include:
So, it is always smarter to invest in certification rather than risk your business.
Getting BIS certification for Hollow Steel Sections under IS 4923 may look long, but it brings long-term value, market credibility, and legal clearance. It’s not just a label—it’s a promise of quality that Indian buyers trust.
Whether you’re manufacturing in India or exporting to the Indian market, you need this certification to stay in business. The process takes time and care, but it ensures that your product is strong, safe, and structurally sound.
Nishi Chawla
30 Oct, 2025
Nishi Chawla
29 Oct, 2025
Nishi Chawla
29 Oct, 2025
Nishi Chawla
28 Oct, 2025
Nishi Chawla
24 Oct, 2025
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