TMT stands for " Thermo Mechanically Treated".

These are manufactured by a quenching and tempering process which allows the outer surface to cool much faster than the inner core, hence making a temperature gradient from the bar axis to the periphery. This results in a harder outer surface while the inner core cools slowly resulting in a ductile inner core.

TMT stands for Thermo-Mechanically Treated, and TMT steel bars are a type of reinforcement steel commonly used in construction. These bars undergo a specific manufacturing process that involves both thermal and mechanical treatment to enhance their properties.

TMT steel bars are widely used in the construction of buildings, bridges, dams, and other infrastructure projects where the combination of strength and ductility is crucial for structural stability and safety.

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