METCON TMT bars are the new generation and high strength ribbed reinforcement bars having superior mechanical properties in strength, weldability, ductility, and bendability, meeting International quality standards. METCON TMT bars are produced in state-of-the-art manufacturing plants under close supervision of our experienced frontline engineers and metallurgists. METCON TMT Steel bars have a uniform and concentrated hardened periphery, with a softer core that has the desired tensile strength coupled with high elongation, specially required in seismic zones.
Under thermo mechanical treatment (TMT), our steel bars are passed through a specially designed water-cooling system where they are kept till the outer surface of the bars becomes colder while the core remains hot. This creates a temperature gradient in the bars. When the bars are taken out of the cooling system, the heat flows from the core to the outer surface, further tempering of the bars, which helps them attain higher yield strength. The resulting heat-treated structure imparts superior strength and toughness to the bars. The microstructure of the core is a very fine-grained ferrite and pearlite.