What is the meaning of grade fe in tmt bars?

In the context of TMT (Thermo-Mechanically Treated) bars, "Fe" stands for iron, which is the primary component of the bars. The grade designation, such as Fe415, Fe500, or Fe600, indicates the yield strength of the steel in megapascals (MPa). For example, Fe500 means the steel has a yield strength of 500 MPa. Higher grades indicate stronger steel, suitable for various construction applications.