Answer / abhilekh jain

tor steel is also called a cold twisted bar its has high corrosion and rust and residul stress developed as compared to tmt and in tmt no residual sress developed and its very highly resisted for corrosion and rust

Answer / sandy

both r same thing
only c.t.d hv difference from t.m.t/tor

Answer / prashanth

Tor steel-the ribbed will be in twisted shape,30% torsion
will be more than as compared to TMT steel.

TMT steel-The ribbed will round shape.

Answer / santosh singh

TMT steel bar is a newer variety of steel for construction purpose. Earlier people have been using TOR Steel for concrete reinforcement.
Thermo Mechanically Treated bars (TMT bars) give you several advantages over the other types of steel:

Twisting operation is not involved in the production of the TMT steel bar,so no residual stresses involved in that , which in turn increases the corrosion resistance.

Rust and Corrosion Resistance :
The main reason for failure in any reinforcement concrete structure is due to corrosion of TOR Steel in the concrete, where this steel corrodes in existence of chloride ions. TMT Bars, due to its Thermo- mechanical treatment are very highly rust and corrosion resistant and is best suited in the humid and coastal states like West Bengal and Orissa.

Uses:
TMT Bars are much superior to conventional TOR Steel by virtue of their various engineering properties and can be used for Residential Buildings, Bridges, Drums, Industrial Establishment and all types of concrete reinforcement purposes.

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