WhenQuenching – The hot rolled bar leaving the final mill stand is rapidly quenched by a special water spray system.

Self-Tempering – The hot core causes tempering of the outer martensitic layer into a structure called ‘Tempered Martensite’. The core still remains austenitic at this stage.

Atmospheric Cooling – This takes place on the cooling bed where the austenitic core is transformed into a ductile ferrite-pearlite structure.