While both Fe500 and Fe500D TMT bars are good for different types of construction projects, the Fe500D TMT bars certainly comes with a greater ductile strength than the Fe500 TMT bars. The Tensile strength of steel remains the same for both these products, but the difference is only in the ductility which is high in Fe500D. Ductility is the ability of the material, to deform and adapt while being stressed with a load.
When a piece of ductile material is pulled, before breaking apart, it will change its shape to adapt to the stress. By doing so it will also absorb energy. This feature provides the Fe500D TMT bars with the capacity to absorb sudden loads, which make them ideal for various natural disasters like earthquakes, tsunamis and cyclones. The safety features offered by Fe500D TMT bars make them well suited for zones having high seismic activity.