- Licence covers octagonal billets under IS 14650:2023
- Certification supports differentiated billet production
Tata Steel Ludhiana has received a Bureau of Indian Standards (BIS) licence under IS 14650:2023 for producing octagonal billets, becoming the first steel producer in India to receive the certification, according to the company. The licence validates its manufacturing and quality systems for billets used in the production of TMT rebars and could support wider adoption of the differentiated billet design across construction and infrastructure applications.
Certification supports specialised billet production
The certified octagonal billets are used in the production of TMT rebars for residential and commercial construction, roads, bridges, metros, airports, industrial and power-sector applications.
According to the company, the octagonal design provides a higher surface area than square and rectangular billets, supporting better heat transfer and more uniform cooling during processing. The design also improves material flow during rolling, which can enhance grain structure, strength, toughness and ductility in the finished rebars.
Higher yield, lower equipment wear
The billet geometry is also expected to improve material utilisation by reducing corner losses. More uniform deformation during rolling can improve roundness and dimensional accuracy of finished rebars while reducing wear on rolling mill equipment through more consistent rolling forces.
Subodh Pandey, Vice President – Technology, R&D, NMB and Graphene, Tata Steel, said, “The BIS licence is a significant validation of the capability we have developed at Ludhiana. It highlights Tata Steel’s continued focus on technological excellence and differentiated product offerings that contribute to a greener steelmaking ecosystem.”
The company said improved material utilisation and energy efficiency from the billet design support its broader focus on a greener steelmaking ecosystem.
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