The letter “D” in the bar implies ductility which means that the steel bars have a higher percentage of elongation. Such Bar offers high-quality assurance without having to compromise on flexibility and ductility. This category of TMT bars demonstrates a higher tensile strength above normal grade TMT bars. The lower proportion of Carbon, Sulphur, and Phosphorous in the bar helps in preserving the steel and resisting earthquake shocks in the future. The more amount of ductile present in the bars enables the Fe500D to withstand the sudden load absorption capacity thus providing higher safety against natural disaster likes earthquakes, tsunamis, and cyclone.