Birla TMT Fe 500D TMT Bar Birla Fe 500D TMT Bar - 8 mm is a high-strength thermomechanically treated reinforcing steel bar produced to IS 1786:2008, featuring a 8 mm nominal diameter in standard 12 m mill lengths. Delivering a minimum yield of 500 MPa, tensile strength of 565 MPa, and elongation of 16%, this bar is designed for ductile frame construction and seismic-zone reinforced concrete structures where reliable load transfer and ductility are critical. The distinct transverse and longitudinal rib pattern ensures maximum mechanical interlock with concrete, reducing slip and enhancing structural integrity in reinforced concrete members.

• Fe 500D IS 1786:2008 certified TMT bar with enhanced ductility and yield values
• Thermomechanical treatment producing superior ductility in hard-rim/soft-core structure
• Yield 500 MPa and UTS 565 MPa with 16% elongation for seismic zone design
• Higher elongation than standard Fe 500 for controlled plastic deformation capacity
• Ribbed surface for full composite action between steel and structural concrete
• Site-weldable with standard procedures compliant with IS 1786 weldability rules
• Specified by IS 13920 for ductile detailing in earthquake-resistant structures
• Standard 12 m lengths enabling standard procurement and scheduling workflow
• Supports optimised reinforcement layouts in seismic-designed frame buildings
• Ideal for columns, beams, and connections in earthquake-resistant construction

• Earthquake-resistant column, beam, and slab reinforcement in zone IV/V
• Ductile RC frame structures in high seismic activity coastal regions
• Seismic-resistant hospital, school, and emergency services buildings
• Critical infrastructure bridges and elevated roads in seismic corridors
• Wind-resistant high-rise frame columns and shear wall reinforcement
• RCC core walls and outrigger systems in super-tall building structures
• Seismically designed industrial plant structures and containment frames
• Deep pile reinforcement in liquefaction-prone seismic zone ground conditions