Thermo Mechanically Treated bars or TMT bars are manufactured by using a unique technique that leaves them with a tough outer area and a soft inner core – this makes the TMT bar strong but also flexible.
The high strength of the bars make them an ideal material to be used with concrete for making structures more robust. The unique ribbed pattern on the TMT bars also provides extra strength by bonding them more tightly with concrete.
The TMT manufacturing process imparts anti-rust properties to the bars. Coarse carbides, which are the main culprits for corrosion in steel, are stopped from building up during the water-cooling phase making the structures made from TMT steel more durable.
Due to its high thermal stability, TMT bars can withstand temperatures ranging from 400 to 600 degree Celsius; this ensures the building’s structural integrity even during a fire.
The soft core of the TMT bars imparts a high level of ductility – giving the structures made with TMT more leeway to manage dynamic and seismic loading.
TMT bars have higher tensile strength and better elongation value, which basically means you need less steel for the same amount of construction.
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