“Fe” stands for Iron out of which the TMT bars are made. The figure “550” implies the minimum yield stress in MPa.The letter “D” in Fe 550 D implies ductility which means that the steel bars have a higher percentage of elongation.

The structures which require more ductility are skyscrapers, stadiums, fly-overs, airports, malls, multiplexes, dams, etc. that demand “D” grade TMT bars.

550D grade TMT bars are preferred for building critical infrastructure in the country for some specific properties of these bars: Resistance to earthquakes,Flexibility and Bending capacity of the bars,High Elongation property, Resistance to corrosion and rust, Fire resistance, Fatigue Resistance, Weldability

Aiswaryam TMT 550D TMT Rings or Stirrups are made of high strength ribbed TMT rebars manufactured using automation. It gives Zero breakage, Zero wastage, Cost & Time Efficient and superior inter looking.