Fe500 Steel (TMT Bar)
Fe500 is a grade of Thermo-Mechanically Treated (TMT) steel reinforcement bar with a minimum yield strength of 500 N/mm² and a minimum tensile strength of 545 N/mm².
Explained Simply
Fe500 is the most commonly specified steel grade for residential RCC construction in India. The "Fe" indicates iron, "500" indicates the minimum yield strength in megapascals. Fe500D is the preferred variant — the "D" indicates higher ductility, meaning the steel can bend more before breaking, which is important for seismic resistance. Always specify Fe500D for residential construction in Chennai.
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Steel grade directly affects structural strength and ductility. Using lower-grade or unspecified steel in structural work compromises safety. Always demand Mill Test Certificates.
Accepting unbranded or re-rolled steel without Mill Test Certificates, or using Fe415 grade steel in projects where Fe500 or Fe500D is specified.
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