Tata Steel Develops BIS-Certified Fire-Resistant E350 Structural Steel

Tata Steel developed a hot-rolled, fire-resistant E350 structural steel designed to help buildings and industrial infrastructure retain load-bearing capacity during fires, business-standard.com reported on October 5, 2026. The new product retains two-thirds of its room-temperature yield strength at 600°C for up to three hours. The Bureau of Indian Standards certified the material under IS 15103.

Bureau of Indian Standards Certification and Alloy Design

The Bureau of Indian Standards certified the hot-rolled structural steel under IS 15103, which serves as the Indian standard for fire-resistant structural steel, tatasteel.com reported. According to Tata Steel, the product relies on an advanced alloy design that combines optimized microalloying elements with microstructural engineering. This composition improves strength retention under elevated temperatures without sacrificing standard performance requirements for construction applications.

Extended Evacuation Windows During Structural Fires

By retaining two-thirds of its strength at 600°C for up to three hours, the steel provides building occupants and emergency responders with additional time to evacuate before structural performance becomes significantly compromised.

Pre-Engineered Buildings and Industrial Applications

These components see widespread deployment across industrial facilities, warehouses, and other large-span structures where steel-intensive construction methods continue to grow in popularity.

Material Innovation for Modern Infrastructure Design

As fire safety gains importance in modern construction, material innovation remains critical to improving structural resilience, according to Subodh Pandey, vice-president of technology, R&D, new material business, and graphene at Tata Steel, business-standard.com reported.

We are leveraging our expertise in advanced materials and engineering to address such evolving needs. This BIS-certified fire-resistant steel is one such innovation, designed to enhance structural safety while meeting the performance demands of modern construction.

Subodh Pandey

The new offering expands Tata Steel’s existing portfolio of value-added and specialized steel products targeting infrastructure and engineering markets.