Spark presents the Grade Fe 415 TMT Bar Spark Fe 415 TMT Bar - 20 mm, a thermomechanically treated IS 1786:2008 reinforcing bar with 20 mm nominal diameter in standard 12 m lengths. Certified to achieve 415 MPa yield, 485 MPa UTS, and 14.5% elongation, this bar is optimised for general construction, residential slabs, and low-rise structural concrete 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 415 grade conforming to IS 1786:2008 structural reinforcement standard
• QST dual-zone microstructure delivering balanced strength and ductility
• Minimum 415 MPa yield with 485 MPa UTS meeting IS design code requirements
• 14.5% elongation for structural ductility in low-rise seismic construction zones
• Transverse and longitudinal ribs for maximum concrete bond performance
• Low carbon equivalent enabling cold bending without cracking or loss of strength
• Corrosion-inhibiting surface scale characteristic of the QST process
• Supplied in standard 12 m lengths for efficient bar scheduling and fixing
• Compatible with standard IS tie wire, coupler, and mechanical splice systems
• Suitable for all general RCC construction applications and structural elements

• Foundation beams, tie beams, and grade beams in residential construction
• Hollow block slabs and ribbed floor systems in low-rise buildings
• Plinth protection, apron slabs, and hardstanding concrete areas
• Boundary walls, compound walls, and perimeter security structures
• Septic tank covers, manhole slabs, and utility cover reinforcement
• Small bridges, culverts, and minor rural drainage structures
• Reinforced masonry lintels and confined masonry structural elements
• Agricultural irrigation channels, check dams, and field drainage works