Shyam TMT Re-bars Fe 415 are BIS-certified high-strength thermo-mechanically treated reinforcement bars produced under controlled conditions from in-house M.S. steel billets by the DRI-EAF route. The brochure gives Shyam Fe 415 properties against IS 1786 Fe 415 and the same eight nominal sizes of 8-40 mm.

Key features

• Superior physical strength and high ductility, with limits much higher than specified in IS 1786
• Controlled chemical composition from in-house M.S. steel billets (low carbon, high manganese)
• High bond strength: more prominent ribs with AR values up to 100-150 % higher than traditional CTD bars or other TMT re-bars
• Superior bendability from the Thermex process (tough outer surface, soft core)
• Excellent weldability
• no pre- or post-weld treatment required
• Cost advantage: section weights very close to BIS nominal values, giving higher meterage per unit weight
• Supports seismic design through its combination of strength, ductility and stress ratio
• No loss of strength at temperatures as high as 600 degC
• Free from internal stress, giving superior corrosion resistance compared with cold-twisted bars and other TMT re-bars

Applications

• Office and residential complexes
• Warehouses
• Schools
• Bridges
• Dams
• Power plants

Specifications

Grade: Fe 415 | Diameter Range: 8 mm - 40 mm | 0.2% Proof Stress (Min): 470 N/mm2 | Ultimate Tensile Strength (Min): 540 N/mm2 | Elongation (Min): 20 % | Bend Test: 2D to 3D | Rebend Test: 4D to 6D | Carbon (Max): 0.250 % | Sulphur & Phosphorus (Max): 0.050 % | Sulphur + Phosphorus (Max): 0.10 % | Manganese (Max): 0.60 % | Carbon Equivalent (Max): 0.40 % | IS 1786 Fe 415 Reference Limits: 0.2% proof stress 415 N/mm2 min, UTS 485 N/mm2 min, elongation 14.5 % min, bend 3D to 4D, rebend 5D to 7D; C 0.30 % max, S&P 0.06 % max, S+P 0.11 % max | Steel Saving Example (single reinforced beam): 1.00 MT of other-brand/CTD steel (yield 415 N/mm2) replaced by 0.90 MT Shyam TMT (yield 460 N/mm2); 0.1 MT (100 kg) saved per MT | Section Weights: As per IS 1786, applicable to all Shyam TMT grades

Standards: IS 1786 | BIS Certified