Tmt Bars & Structural – TMT Bars It is a special type-of bar manufactured using a latest technology. In developed countries only TMT Bar is used for construction activities.It is manufactured using most advanced technology of the 21st century called 'Thermo Mechanical Treatment'.TMT bars are widely used in general purpose concrete reinforcement structures, bridges and flyovers, dams, thermal and hydel power plants, industrial structures, high-rise buildings, underground platforms in metro railway and rapid transport system. TMT Bars are thermo-mechanically-treated through leading world tempcore based technology for high yield strength. The process involves rapid quenching of the hot bars through a series of water jets after they roll out of the last mill stand. The bars are cooled, allowing the core and surface temperatures to equalize. The bar core cools down slowly to turn into a ferrlite-pearlite aggregate. Specialities of the TMT bars is 1) It is earth quake resistant because of its high tensile strength and flexibility 2) It is less affected by rust. 3) It has 4 % less weight per meter than normal that makes it economical.4) It has more strength to sustain fire.5) It bonds strongly with cement than other reinforcement bars.6) It does not peel off the skin while working with it. Structural steel is a category of steel used as a construction material for making structural steel shapes. A structural steel shapeis a profile, formed with a specific cross section and following certain standards for chemical composition and mechanical properties. Structural steel shapes, sizes, composition, strengths, storage practices, etc., are regulated by standards in most industrialized countries.