Tata Tiscon 550 is a high-strength ribbed TMT reinforcement bar that gives consistent strength. Click here to know more. With high tensile strength, and superior ductility, Tata Tiscon SD (Super Ductile) high strength ribbed TMT rebars are made to be better prepared for earthquakes in seismic-prone zones.we are supplying 32mm with a grade of Fe 500D, Fe 500, Fe 550SD, Fe 600