he short form Fe abbreviates for ferrous material, for example Iron, employed to make fortification steel bars. Steel’s yield strength is designated by the number 415, which is in fact 415 N/mm2. Basically, Fe 415 is one of the kinds of TMT bars applied in building RCC constructions. Even though Fe 500 displays an extension of approximately 10%, this type specifies a prolongation of nearly 14%. For instance, use Fe 415 instead of Fe 500 for any building in a seismic zone. This reinforced groundwork is embraced of Cold Twisted and Deformed (CTD), or else Cold Worked High Yield Strength Deformed, to attain High Strength. Fe 415 along with Fe 500 are the typical steels. Fe recommends an Iron constituent in categories of TMT bars.