Answer / arvindrai

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.

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.

Answer / mrdraj100

i want to know how to distinguish them, by seeing them their outlook,specially rebars of fe500 and fe 550..., in torsteel there is spiral line running over it.

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