Shyam TMT Re-bars Fe 500 D is the ductile variant of the Fe 500 grade, with 560 N/mm2 minimum proof stress, 660 N/mm2 minimum tensile strength and 20 % minimum elongation in the brochure's table. It is aimed at heavy-load RCC structures such as flyovers, dams and bridges.

Key features

• Special weldability: no pre- or post-weld treatment (low carbon, controlled thermo-mechanical treatment)
• Higher corrosion resistance and fatigue strength from a uniform, thick tempered martensitic rim (thicker than Fe 415/415 D)
• Higher tensile strength than Fe 415/415 D, so lower steel consumption: about 17 % effective saving compared with Fe 415 (1.00 MT of Fe 415 steel replaced by 0.83 MT
• 170 kg saved)
• Also carries the features of Shyam Fe 415/415 D TMT re-bars

Applications

• Heavy-load RCC structures such as flyovers, dams and bridges
• Power plants
• High-rise buildings
• Other critical structures requiring high yield load without loss of ductility

Specifications

Grade: Fe 500 D | Diameter Range: 8 mm - 40 mm | 0.2% Proof Stress (Min): 560 N/mm2 | Ultimate Tensile Strength (Min): 660 N/mm2 | Total Elongation (Min): 6 % | Elongation (Min): 20 % | Bend Test: 2D to 3D | Rebend Test: 3D to 5D | Carbon (Max): 0.22 % | Phosphorus & Sulphur (Max): 0.035 % | Phosphorus + Sulphur (Max): 0.065 % | Manganese (Max, as printed): 0.080 % | Carbon Equivalent (Max): 0.350 % | Nitrogen (Max, printed under 'ppm max'): 0.012 | IS 1786 Fe 500 D Reference Limits: 0.2% proof stress 500 N/mm2 min, UTS 565 N/mm2 min, total elongation 5 % min, elongation 16 % min, bend 3D to 4D, rebend 4D to 6D; C 0.25 % max, P&S 0.040 % max, P+S 0.075 % max, N 0.012 | Section Weights: As per IS 1786, applicable to all Shyam TMT grades

Standards: IS 1786