Birla TMT presents the Grade Fe 550 TMT Bar Birla Fe 550 TMT Bar - 25 mm, a thermomechanically treated IS 1786:2008 reinforcing bar with 25 mm nominal diameter in standard 12 m lengths. Certified to achieve 550 MPa yield, 585 MPa UTS, and 10% elongation, this bar is optimised for heavy structural RCC, bridge decks, and high-rise construction where controlled ductility and strength are paramount. The QST-process dual microstructure — hardened rim plus tough core — provides the unique combination of high strength and energy-absorbing capacity essential for earthquake-resistant concrete structures.

• Certified Fe 550 conforming to IS 1786:2008 high-strength reinforcement standard
• QST microstructure delivering 550 MPa yield and 585 MPa tensile performance
• 10% elongation meeting IS 1786 minimum ductility requirements at 550 MPa grade
• High strength-to-weight ratio allows economical rebar scheduling optimisation
• Transverse and longitudinal ribs for strong composite action with concrete
• Field weldable using standard electrodes and IS-compliant weld procedures
• Excellent fatigue performance for dynamically loaded bridge and road structures
• Standard 12 m mill length for consistent procurement and project scheduling
• Suitable for prestressed concrete support structures and heavy floor systems
• Reduces congestion in heavily reinforced sections by allowing fewer, larger bars

• Heavily reinforced columns in transfer floors of high-rise buildings
• Long-span post-tensioned floor slabs and transfer beam reinforcement
• Bridge girder bottom flange and high-tension zone reinforcement
• Industrial heavy-lift floor slabs and loading dock reinforcement zones
• Metro station roof slabs and heavily loaded underground box structures
• High-rise core wall and shear wall primary reinforcement members
• Water retaining walls and reservoir slabs under high hydrostatic pressure
• Nuclear plant containment structures and safety-critical civil works