Technological developments in production processes of High Strength Rebars
In recent past, there have been two major technological developments in processes for production of High Strength Deformed Bars. These are:
(i) Microalloying &
(ii) so called TMT process;.
These are discussed below:
Microalloying with Nb, V, Ti & B, in combination or individually helps in meeting most of these requirements and producing High strength reinforcement bars having yield strength of 500 and 550 MPa.
The need for cutting down the cost of production of high strength reinforcement bars initiated the involvement of a more economical and competitive process — the so called Thermo Mechanical Treatment (TMT) Process.
The use of Thermo Mechanical Treatment process has not only helped produce reinforcement bars of high yield strength but also having superior ductility, weldability, bendability & better corrosion resisting properties.
“Latest developments on steel front” by Jagvir Goyal
“Thermex Quenching and Tempering Technology” by R.K. Markan, the Chairman and Managing Director of H&K India
Websites of SAIL, Rajuri steel & Evcon